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University of Bucharest, Faculty of Physics,
Research and Development Centre for Materials and Electronic&Optoelectronic Devices (MDEO)

I. Short presentation of the Research Development Centre for Materials and Electronic and Optoelectronic Devices

The Research Development Centre for Materials and Electronic and Optoelectronic Devices (MDEO) was established in 2006 at the Faculty of Physics of the University of Bucharest, centred on the first Laboratory of Organic Materials and Electronic and Optoelectronic Devices, from our country. Today the Centre, with modern experimental facilities and a good expertise of the research team, develops research activities in the fields of: Physics of Semiconductors; Electrical and photoelectric properties of the organic semiconductor thin films; Organic Photovoltaic Cells; Organic Field-Effect Transistors; Organic-on-inorganic semiconductor diodes; Theory of carrier transport mechanism and semiconductors wafers diagnostic techniques; Polycrystalline semiconductors thin films from AII-BVI compounds; Effect of ionizing radiations on the structural, electrical and optical properties of the semiconducting thin films; Semiconducting oxides; Nanostructured materials; Simulation and Modeling of different kind of semiconducting materials and electronic and optoelectronic devices.
Applied research is focused on the assessment of possible applications of new generation of hybrid organic/inorganic photovoltaic cells as low power energy sources and to increase the performances and life time of solar cells based on AII-BVI thin films for space applications.

Infrastructure

As concerning the experimental facilities in the laboratories of the centre, they include both preparation of thin films and devices and their required characterization setups.
  • For the preparation of the thin films there are three thermal vacuum evaporation systems each dedicate to deposition of Metallic thin films, Organic thin films and AII-BVI semiconducting compounds thin layers, respectively, all running in high dry vacuum conditions, assured by the turbo molecular pumps. Recently we start the deposition of different thin films using the new equipment TECTRA complex system containing the DC and RF Magnetron-Sputtering, E-beam and Thermal Vacuum Evaporation deposition techniques. The thickness of the grown thin films is done in-situ with a Quartz resonator based system.
  • The preparation of different kind of nanostructures (nanowires and nanotubes) take place in a Clean Room – ISO 6 class, using an electrochemical deposition system, based on template approaches.
  • The structural characterization of the prepared thin films and structures is done with a XRD - High Resolution X-ray Diffractometer Bruker D8 Discover for thin film application, equipped with four motorized axes stage, having as typical applications: XR Reflectometry, Rocking measurements, q/2q measurements and structural phase identification
  • Morphology of prepared organic and inorganic thin films or nanostructured layers is assessed ex-situ using:
    AFM - Atomic Force Microscope able to operates in the following modes: STM, C-AFM, M-AFM,
    SEM - Scanning Electron Microscope TESCAN VEGA XM having the following characteristics: Dual mode operation, High and medium vacuum, equipped with 5 axes stage fully monitorized , 3 nm imaging resolution, conductive and dielectric sample can be analyzed, respectively, both equipped with modules for nanolithography.
  • As concerning the electrical characterization the Centre has extensive expertise in Space Charge Limited Currents (SCLC) and Thermo Stimulated Currents (TSC) measurements as well as in Semiconducting Organic Inorganic Surface Analysis Spectroscopy (SOISAS) for determining of the surface state density in equilibrium with any inorganic wafer or epitaxial film. The experimental setups contain two Helium closed cycle cryostats with the samples in vacuum and with 10 pin electrical feed through for sample contacting, one in the 8 – 325 K range, and with optical access to the samples through 4 quartz windows, used for electrical and optical material characterization, and the other one in the range of 2,6-325 K for galvanomagnetic applications used especially for Hall effect and magneto resistance measurements. Both cryostats are use frequently to process Resistivity and Hall Effect measurements as function on temperature, for different samples.
  • Characterization of the photo-active layer of different structures of photovoltaic cells, is performed one a hand through optical measurements, (absorption, reflection, transmission and photoluminescence spectra), using our UV-VIS Spectrophotometer Perkin Elmer Lambda 35 with the characteristics: 190 – 1100 nm wavelength, equipped with integrating sphere, specular reflectance accessories, operating in Transmission, Reflection and Absorption modes, and on the other hand the action spectra are performed using a on-line experimental setup containing a double grid monochromator step by step monitorized, and adequate light sources.
  • The current voltage characteristics of the photovoltaic cells in forth quadrant, and the determination of typical parameters in regime of photoelement: Open-Circuit Photovoltage (Voc), Short-Circuit Photocurrent (Isc), Fill Factor (FF), External Quantum Efficiency (EQE) and Power Conversion Efficiency (?) are performed using a special setup containing as light source a Solar Simulator - Equipped with an Hg-Xe high pressure lamp with highly stabilized output and AM 1.5 filters and a load resistor in the range of 10 ? - 2 T?.
  • The main field of research

    Referring to the research in the field of organic photovoltaic cells, in the last 15-20 years our team of research was involved in the study of the electrical and photoelectrical properties of the single, double and three-layered photovoltaic cells based on the organic thin layers. Using new materials and new design of the structures, the power conversion efficiency was permanently increased. As concerning the modeling and simulation of organic photovoltaics, for each type of prepared and characterized PV structure the dark Current-Voltage Characteristics were measured in a wide range of temperatures. In this way the transport parameters of the charge carriers were determined and different models to explain the involved charge carrier transport mechanisms were developed. A special model to extract, with accuracy, the quality factor and saturation current, removing the effect of series and shunt resistance was developed. Also for each type of cell the complete characterization in fourth quadrant (PV mode) has been done explaining the PV mechanism involved. An extended review of the expertise of our group in the field of organic electronics and optoelectronics, is given in the reference [2], in the next section.
    In the last years, applied research of our group is focused on the assessment of possible applications of new 3rd and 4th generations of photovoltaic cells based on polymeric ,,bulk heterojunctions” and hybrid organic/inorganic photovoltaic cells, as low power energy sources, which could be processed also on flexible and transparent supports, and we continue to increase the performances and life time of solar cells based on AII-BVI thin films for space applications.
    The research team of the centre has participated in several national and international projects in the field of organic electronics, including, EU Framework projects and bilateral projects. The staff members have extensive publications in area of organic electronics and optoelectronic devices acquiring a big number of citations in ISI journals, see: http://www.mdeo.eu or http://solid.unibuc.ro/staff/antohe.html

    Contact

    Title: Professor Dr.
    First Name: Stefan
    Last Name: ANTOHE
    Phone Number +40-21-4574535
    Fax Number +40-21-4574418
    e-Mail : santohe@solid.fizica.unibuc.ro; s_antohe@yahoo.com
    Director of R&D Centre for Materials and Electronic and Optoelectronic Devices
    University of Bucharest, Faculty of Physics,
    405 Atomistilor Street, P.O.Box MG-11, Magurele Ilfov, 077125 ROMANIA

    II Scientific Research Report - Selection

    1. International Research Projects:
      1. Stefan ANTOHE Director of the Romania-Slovenia Bilateral Project, Nr 5CB/30.05.2008 ,,Electrical and Optical Properties of ,, BULK HETEROJUNCTION”, Organic Solar Cells(2008-2009) ~ 25 000 Euro
      2. Stefan ANTOHE Director of international project Nr. 403/29.04.2010 ,,Optoelectronic properties of third generation flexible organic photovoltaic cells, based on conjugated polymers”.
    2. National Research Projects:
      1. Director of Project: CEEX05 Nr. D11_43/06.10.2005 ,Hibride Structures from AIIBVI Nanowires Arrays/Organic thin films for Optoelectronic Devices” (MATNANORG)
      2. Director of Project: CEEX05 Nr. D11_63/03.10.2005 "Electronical and Optical Phenomena in Organic materials with Conjugated Bonds for Photonics " (ORGFOTON) 3) Scientific Director of the Project: CEEX05 Nr.4./05.10.2005: " Amorphous and nanostructured Chalcogenics materials for Sensors and Optoelectronics " (CANSO)
      3. Scientific Director of the Project: CEEX05 Nr.21/05.10.2005: "Multilayered nanowires for Giant magneto resistance”(NANOSPINVALVE)
      4. Scientific Director of the Project: CEEX05 Nr. 105/03.10.2005: "New Flexible Photovoltaic Systems based on Polymeric materials" (SOLAR)
      5. Scientific Director of the Project: CEEX05 Nr.46./05.10.2005: "Optical and Electronic Transport Properties of Transition Metals Doped ZnO Nanowires" (NANOXID)
      6. Scientific Director of the Project: CEEX05 Nr.4/03.10.2005: "Multifunctional materials with applications in micro- and milimetric- waves" (MATMIUM)
      7. Scientific Director of the Project: CEEX06 Nr.53 /2006: " Optical nanostructured Sensors for advanced gases detection" (SONDAG)
      8. Scientific Director of the Project: CEEX06 Nr. 33 /2006: „Investigation of bor Nitride as semiconductor for extreme conditions”(SEMNITBOR),
      9. Scientific Director of the Project: CEEX06 Nr. 24/25.07.2006:„Fundamental Research on InN multifunctional materials for flexible optoelectronic Devicesl”(INDIN),
      10. Scientific Director of the Project: CEEX06 Nr. 29 /2006: "The Orientation of the semiconducting and magnetic properties of nanostructured ZnO thin Films for Optoelectronics and Spintronics"(DISEMAZON)
      11. Member in the research team of the project: CEEX06 Nr. 2/2006: “Active laser Mediums for IR range” (MALIR)
      12. Member in the research team of the project: CEEX06 Nr. 1/2006: “nanowires from metalic Oxides with semiconducting and magnetic propertiesi” (NANOSEMIMAGNET)
      13. Director of Project: PN II PVCELLSA, D8- 81-030/2007, ,, Photovoltaic Cells for Space Applications
      14. Scientific Director of the Project: PN II Nr. 71-134 /2007 ELECTROCISCELL: " New type of flexible solar cells based on electrodeposited CIGS compounds,
      15. Scientific Director of the Project: PN II Nr. 81-053 /2007 TERASCAN: " Research on emission, modulation, scaning and detaction of the electromagnetic waves in the field of THZ.
      16. Scientific Director of the Project: PN II nr.: 72-162 “New materials with variable gap based on InN, for Optoelectronic Devices – MinNA”
      17. Scientific Director of the Project: PN II nr.: 71-149 ,,Materials for oxidic heterostructures for Optoelectronic Devices”-HETOX
      18. Scientific Director of the Project: PN II nr.22-132: Photovoltaic Cells based on thin films prepared by alternative technologies for clean energy production.(VOLTERA),
      19. Scientific Director of the Project: PN II nr.72-162 “Non linear functionalities in nanostructured photonic materials for IT applications” (FUNFOTON)
    3. Papers published in Romanian Journals recognized by national Council of Scientific Research in Higher Education (NCSRHE) or presented and published in proceedings of international conferences:
      1. Photovoltaic cells based on A2-B6 compounds used in space Applications, Sorina IFTIMIE, Veta GHENESCU, Cristina BESLEAGA, T.L. MITRAN, Oana PORUMB, V. A. ANTOHE, M. RADU, C. TAZLAOANU, A. RADU, L. ION, S. ANTOHE, International Conference of Aerospace Sciences ,,AEROSPATIAL 2010, Bucharest, 20-21 October, 2010- Proceedings, S4.2.1, 12 pags- ISSN 2067-8622
      2. Hybrid nanostructured Organic/Inorganic Photovoltaic Cells, S. Antohe, I. Enculescu, Cristina Besleaga, Iulia Arghir, V. A. Antohe, V. Covlea, A. Radu, L. Ion, 2010 Ceramics Engineering&Science proceedings (CESP), Volume 31, Issue 7 ,,Nanostructured Materials and Nanotechnology IV”, pg.71-83, Volume Editors Sanjay Mathur and Tatsuki Ohji, Wiley, ISBN 978-0-470-93495-1
      3. Interactive Conceptual Maps Part of Constructivist Environment for Advanced Physics Teaching, Florentina IOFCIU, Cristina MIRON, S. ANTOHE, Proceedings of the 5th International Conference On Virtual Learning, October 29-October 31, 2010, Editura Universitatii din Bucuresti, 2010, pgs.95-100, ISSN: 1844-8933
      4. Computer Modeling in Physics’ Experiments, Carmen-Gabriela BOSTAN, S. ANTOHE, Proceedings of the 5th International Conference On Virtual Learning, October 29-October 31, 2010, Editura Universitatii din Bucuresti, 2010, pgs.147-152, ISSN: 1844-8933
      5. Role of the Movie Maker Program in Physics Experiments, Catalin CHITU, Catalin MACIUCA, Stefan ANTOHE, Proceedings of the 5th International Conference On Virtual Learning, October 29-October 31, 2010, Editura Universitatii din Bucuresti, 2010, pgs.214-220, ISSN: 1844-8933
      6. Photovoltaic Cells Based on Organic Thin Films, Stefan ANTOHE, Research Development Centre for Materials and Electronic and Optoelectronic Devices, FP7 Consultation Workshop on Organic and Large Area Electronics: Future R&D and New challenges; In view of updating the ICT work programme related to objective ICT-2007-3.2"Organic and large area electronics …" 20 February 2008, Brussels, 9:30-16:00, Room S1,
      7. Photovoltaic Cells Based on Organic Thin Films, Stefan ANTOHE Proceedings of the Nano-Sol-Net International Symposium: Trends in Organic Electronics and Hybrid Photovoltaics, Eforie Nord, Romania, June 12-14, 2008, edited by M.A. Gîrtu and M. Fahlman, Ovidius University Press, Constanta 2008, ISBN -978-973-614-414-1, pp. 114-125
      8. Physical Properties of A2B6 Wires Electrodeposited by a Template Method, L. Ion, I. Enculescu, S. Antohe, 9th International Balkan Workshop on Applied Physics, July 7-9 2008, Constanta Romania, Book of Abstract, S1 L14, pg56
      9. Electrical and Photoelectrical Properties of Hybrid Inorganic/Organic Photovoltaic Structures based on CdTe Nanowires and Organic Dyes Films, L. Ion, I. Enculescu, Elena Matei, C. Tazlaoanu and S. Antohe, IMRC, Chongqing, China, June 9-12 2008, Symposium B, P-B3.40, Pg.55
      10. Electrical Properties of CdTe Nanowires Prepared by a Template Method, L. Ion, I. Enculescu, Rosemary Bazavan, R. Neuman and S. Antohe, IMRC, Chongqing, China, June 9-12 2008, Symposium D, O-D11.14, Pg.173
      11. Defect Induced by Proton Irradiation in A2B6 Thin Films Used in Photovoltaic Applications, Rosemary Bazavan, Oana Ghenescu, M. Ghenescu, Dora Crisan, A. Radu, L. Ion, S. Antohe, 9th International Balkan Workshop on Applied Physics, July 7-9 2008, Constanta Romania, Book of Abstract, S5P53, Pg.
      12. Structural and Morphological Properties of NiCu Magnetic Thin Films, D. Bazavan, Rosemary Bazavan, I. Enculescu, Elena Matei, L. Ion, S. Antohe, 9th International Balkan Workshop on Applied Physics, July 7-9 2008, Constanta Romania, Book of Abstract, S5P52, Pg. 190
      13. G. Socol, I. N. Mihailescu, A.-M. Albu, S. Antohe, F. Stanculescu, A. Stanculescu, L. Mihut, N. Preda, O. Rasoga, M. Socol (2008): “MAPLE Prepared Polymeric Thin Films for Non-linear Optics Applications”, E-MRS 2008, Strasbourg, France
      14. L. Ion, I. Enculescu, Elena Matei, Rosemary Bazavan, Larisa Magherusan, S. Antohe, ,,Photoelectrical properties of hybrid inorganic/organic structures based on CdTe nanowires and organic dyes films for photovoltaic applications” Symposium P : Advanced organic and/or inorganic functional materials of the E-MRS 2008 Spring Meeting, Strasbourg (France) May 26 to 30, 2008.
      15. Veta Ghenescu , L.Ion, M. Ghenescu, D. Bazavan, Rosemary Bazavan, V. Covlea, G. Velisa, M. Gugiu, S. Antohe ,,Defects induced by proton irradiation in CdTe thin films used as absorber in photovoltaic applications” Symposium L : Thin film chalcogenide photovoltaic materials of the E-MRS 2008 Spring Meeting, Strasbourg (France) May 26 to 30, 2008.
      16. C. Ghica, L. Nistor, L. Ion, S. Antohe, G. Epurescu, M. Dinescu, Organic photovoltaic cells using transparent ZnO films as electrodes Symposium P : Advanced organic and/or inorganic functional materials of the E-MRS 2008 Spring Meeting, Strasbourg (France) May 26 to 30, 2008.
      17. I. Enculescu, Elena Matei, M. Sima, L. Ion, S. Antohe, ,,Fabrication and Properties of Semiconductor Nanowires, The 22nd General Conference of the Condensed matter Division of the European Physical Society, 25-29 August 2008, Roma, Italy
      18. Elena Matei, I. Enculescu, M. Sima, Monica Enculescu, L. Ion, S. Antohe, R. Neumann, ,,Galvamomagnetic Properties of Single Nanowires Prepared by Template Method” Second International Conference on Advanced Nano Materials, ANM 2008, 22-25 Iunie 2008, Aveiro, Portugal
      19. I. Enculescu, Elena Matei, L. Ion, S. Antohe, Brandusa Ilescu, M. Sima, Mariana Sima, R. Neumann, ,,Galvamomagnetic Properties of Electrodeposited Nanowires” E-MRS 2008 Spring Meeting, Strasbourg (France) May 26 to 30, 2008.
      20. Photovoltaic Cells Based on Organic and Inorganic Thin Films at Research Development Centre for Materials and Electronic and Optoelectronic Devices from University of Bucharest Stefan ANTOHE, Int. Workshop on RENEWABLE ENERGY SOUCES, Bucharest, November 15, 2008, Proceedings, Supplement of ,,Quality - access to success”Journal Year 9, no. 94, 2008 ISSN 1582-2559, CNCSIS B+, included in EBSCO Publishing database, pgs 1-33
      21. Electrical and Photoelectrical Properties of Organic Photovoltaic Cells Based on poly(3-hexylthiophene) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C61, Camelia Florica, Iulia Arghir, Polona Skraba, Alina Dora Crisan, Larisa Magherusan, C. Tazlaoanu, L. Ion, S. ANTOHE, Int. Workshop on RENEWABLE ENERGY SOUCES, Bucharest, November 15, 2008, Proceedings, Supplement of ,,Quality - access to success”Journal Year 9, no. 94, 2008 ISSN 1582-2559, CNCSIS B+, included in EBSCO Publishing database, pgs 1-11
      22. Physical Properties of CdTe Nanowire Arrays Used in Photovoltaic Applications, A. RADU, L. ION, C. TAZLAOANU, I. ENCULESCU, M. RADU, S. ANTOHE, Int. Workshop on RENEWABLE ENERGY SOUCES, Bucharest, November 15, 2008, Proceedings, Supplement of ,,Quality - access to success”Journal Year 9, no. 94, 2008 ISSN 1582-2559, CNCSIS B+, included in EBSCO Publishing database, pgs 1-12
      23. Structural, Optical and Electrical Properties of Nanostructured ZnO Thin Films for Hybride Photovoltaic Cells, C. Tazlaoanu, M. Radu, V. Covlea, Larisa Magherusan, L. Ion, S. Antohe, Int. Workshop on RENEWABLE ENERGY SOUCES, Bucharest, November 15, 2008, Proceedings, Supplement of ,,Quality - access to success”Journal Year 9, no. 94, 2008 ISSN 1582-2559, CNCSIS B+, included in EBSCO Publishing database, pgs 1-6
      24. S. Antohe, F. Stanculescu, M. Socol, O. Grigorescu, A.-M. Albu (2007): „Optical Properties of the Polycarbonate Bisphenol A/Monomeric Amidic Derivatives Composite Systems For Non-Linear Applications”, IBWAP 2007, Constanta, Romania;
      25. Electrical properties of electrodeposited CdS nanowires, M. Ghenescu, L. Ion, I. Enculescu, C. Tazlaoanu, V. A. Antohe, M. Sima, M. Enculescu, E. Matei, R. Neumann, O. Ghenescu, V. Covlea, S. Antohe, E-MRS Spring Meeting, Strasbourg, France, May 28-June1, 2007.
      26. Transport properties of electrodeposited ZnO nanowires, C. Tazlaoanu,L. Ion, I. Enculescu, M. Sima, Elena Matei, R. Neumann, Rosemary Bazavan, D. Bazavan, S. Antohe, , E-MRS Spring Meeting, Strasbourg, France, May 28-June 1, 2007.
      27. Electrical and Photoelectrical Properties of Nanostrucured ZnO Thin Films for Photovoltaic Applications, S. Antohe, , L. Ion, C. Tazlaoanu, G. Socol. L. Magherusan, I. Enculescu, D. Bazavan, I. N. Mihailescu, and V. A. Antohe, MRS Spring Meeting April 9-16, 2007,, Moscone West, San Francisco, SUA , Z 4.9 pg.538
      28. The Effect of Ionizing Radiations on the Structural, Electrical and Optical Properties of Aii-BVI Polycrystalline Thin Films Used as Solar Cells Materials, L. Ion, V. A. Antohe, Oana Ghenescu, M. Ghenescu and, S. Antohe, MRS Spring Meeting April 9-16, 2007, Moscone West, San Francisco, SUA , Y 12.1 pg.519
    4. Articles published in ISI journals:
      1. PLD DEPOSITED Al2O3 THIN FILMS FOR TRANSPARENT ELECTRONICS, M. ION, C. BERBECARU, S. IFTIMIE, M. FILIPESCU, M. DINESCU, S. ANTOHE, Digest Journal of Nanomaterials and Biostructures Vol. 7, No. 4, p. 1609-1614, 2012
      2. Transparent indium zinc oxide thin films used in photovoltaic cells based on polymer blends Besleaga, Cristina; Ion, L.; Ghenescu, Veta; G. Socol, A. Radu, Iulia Arghir, Camelia Florica, S. Antohe, THIN SOLID FILMS Volume: 520 Issue: 22 Pages: 6803-6806 DOI: 10.1016/j.tsf.2012.07.030, 2012
      3. UV-Absorption mechanisms of Ni2+-binding bovine serum albumin, M. DIEACONU, A. IOANID, S. IFTIMIE, S. ANTOHE, Digest Journal of Nanomaterials and Biostructures Vol. 7, No. 3, p. 1125 - 1138, 2012
      4. EFFECTS OF ALPHA PARTICLES IRRADIATION ON THE PHOTOELECTRICAL PROPERTIES OF CdS/CdTe HETEROJUNCTIONS, S. ANTOHE, Veta GHENESCU, Sorina IFTIMIE, A. RADU, O. TOMA, L. ION, Digest Journal of Nanomaterials and Biostructures Vol. 7, No. 3, p. 941 - 946, 2012
      5. Ab-initio investigation of point-like defects in AlN nanowires Author(s): Nicolaev, A ; Mitran, TL ; Nemnes, GA ; Ion, L ; Antohe, S Book Group: IOP ADVANCED MANY-BODY AND STATISTICAL METHODS IN MESOSCOPIC SYSTEMS Book Series: Journal of Physics Conference Series Volume: 338 Article Number: 012014 DOI: 10.1088/1742-6596/338/1/012014, 2012
      6. Magnetic behavior and clustering effects in Mn-doped boron nitride sheets : Mitran, T. L.; Nicolaev, Adela; Nemnes, G. A.; L. Ion, S. Antohe, JOURNAL OF PHYSICS-CONDENSEMATTER Volume: 24 Issue: 32 Article Number: 326003 DOI: 10.1088/0953-8984/24/32/326003, 2012
      7. Computer assisted methods in teaching basics of magnetism at high school level, C. KUNCSER, A. KUNCSER, G. MAFTEI, S. ANTOHE, ROMANIAN REPORTS IN PHYSICS, Volume 64, Number 4, 2012
      8. Superheated droplet detectors: theoretical model and tests to neutron field /B, C. KUNCSER, A. KUNCSER, S.ANTOHE, ROMANIAN REPORTS IN PHYSICS, Volume 64, Number 4, 2012
      9. Double layer structure of ZnO thin films deposited by RF-magnetron sputtering on glass substrate Besleaga, C.; Stan, G. E.; Galca, A. C.; Ion L.; Antohe S, APPLIED SURFACE SCIENCE Volume: 258 Issue: 22 Pages: 8819-8824 DOI: 10.1016/j.apsusc.2012.05.097 Published: SEP 1 2012
      10. Porous nanostructured ZnO films deposited by picosecond laser ablation Author(s): Sima, Cornelia; Grigoriu, Constantin; Besleaga, Cristina; T. MITRAN, L. ION and Stefan ANTOHE; MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS Volume: 177 Issue: 14 Pages: 1182-1187, 2012
      11. TEACHING OF ALTERNATIVE ENERGY SOURCES IN ROMANIAN SCHOOL Author(s): Dina, Nicoleta; Craciun, Simona; Bulgariu, Mirela; Antohe, S; ROMANIAN REPORTS IN PHYSICS Volume: 64 Issue: 3 Pages: 868-877, 2012
      12. MURPHY - MULTIMEDIA TOOL FOR ADVANCED PHYSICS CONCEPT APPROACH: GIANT MAGNETORESISTANCE (GMR) Iofciu, Florentina; Miron, Cristina; Dafinel, M.; Dafinei, A; Antohe, S; ROMANIAN REPORTS IN PHYSICS Volume: 64 Issue: 3 Pages: 841-852 Published: 2012
      13. POROUS Al2O3 FILMS OBTAINED BY PLD ON COPPER TEMPLATES D. TENCIU, C.R. IORDANESCU*, R. SAVASTRU, I.D. FERARU, A. KISS, C.N. ZOITA, R. NOTONIER, A. TONETTO, M. EYRAUD, O. MONNEREAU, L. TORTET, C. E. A. GRIGORESCU, S. ANTOHE, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES VOL. 7, NO 1, JANUARY-MARCH 2012, P. 393 - 397
      14. A DIDACTICAL PERSPECTIVE ON THE APPLICATION OF THE MAGNETO-OPTIC KERR EFFECT IN VERSATILE STUDIES OF MODERN MAGNETIC MATERIALS : Kuncser, C.; Kuncser, A.; Antohe, S., ROMANIAN REPORTS IN PHYSICS Volume: 64 Issue: 3 Pages: 743-753, 2012
      15. LEARNING BY SCIENTIFIC AND EXPERIMENTAL REASONING: PRACTICAL PROMINENCE OF ERRORS AND THEIR ELIMINATION IN TOTAL INTERFERENCE CONTRAST MICROSCOPY Author(s): Kuncser C.; Kuncser A.; Antohe S., ROMANIAN REPORTS IN PHYSICS Volume: 64 Issue: 1, Pages: 143-154, 2012
      16. D. Dragoman - Berry phase and traversal time in asymmetric graphene structures, Physica E 44, 816-820, 2012
      17. A. Zubarev, D. Dragoman - Tunable energy filtering of ballistic electrons in graphene, J. Phys. D 45, 075301, 2012
      18. A. Cismaru, M. Dragoman, A. Radoi, A. Dinescu, D. Dragoman - The microwave sensing of DNA hybridization using carbon nanotubes decorated with gold nanoislands, J. Appl. Phys. 111, 076106, 2012
      19. D. Dragoman - Influence of light polarization on the analogy between ballistic nanostructures and the electromagnetic field, J. Opt. Soc. Am. B 29, 1528-1534, 2012
      20. A. Zubarev, D. Dragoman - Applications of multi-barrier structures in graphene, Physica E 44, 1687-1691, 2012
      21. M. Dragoman, G. Konstantinidis, K. Tsagaraki, T. Kostopoulos, D. Dragoman, D. Neculoiu - Graphene-like metallic-on-silicon field effect transistor, Nanotechnology 23, 305201, 2012; also as e-print: arXiv:1202.4356
      22. M. Dragoman, D. Neculoiu, A. Cismaru, G. Deligeorgis, G. Konstantinidis, D. Dragoman - Graphene radio: detecting radiowaves with a single atom sheet, Appl. Phys. Lett. 101, 033109, 2012; also as e-print: arXiv:1202.1968
      23. A. Radu, D. Dragoman, S. Iftimie - Steering and collimating ballistic electrons with amphoteric refraction, J. Appl. Phys. 112, 024318, 2012
      24. A. Dumitriu, D. Dragoman - Tunable pulse delay in an anisotropic metamaterial slab, Photonics and Nanostructures-Fundamentals and Applications 10, 493-498, 2012
      25. A. Radoi, M. Dragoman, A. Cismaru, G. Konstantinidis, D. Dragoman - Self-powered microwave devices based on graphene ink decorated with gold nanoislands, J. Appl. Phys. 112, 064327, 2012
      26. N. Cotfas, D. Dragoman - Properties of finite Gaussians and the discrete-continuous transition, J. Phys. A 45, 425305, 2012; also as e-print: arXiv:1205.6302
      27. A. Dumitriu, D. Dragoman - Composite metamaterial for ballistic electrons, J. Phys. D 45, 485104, 2012
      28. High quality amorphous indium zinc oxide thin films synthesized by pulsed laser deposition, G. Socol, D. Craciun, I.N. Mihailescu, N. Stefan, C. Besleaga, L. Ion, S. Antohe, K.W. Kim, D. Norton, S.J. Pearton, A.C. Galca, V. Craciun, Thin Solid Films Volume 520, Issue 4, 1 December 2011, Pages 1274-1277
      29. Thermal behaviour of helium-implanted spinel single crystals Velisa G.; Debelle A.; Vincent L; L. Thome L; Declemy A; Pantelica D; Antohe S, JOURNAL OF NUCLEAR MATERIALS Volume: 416 Issue: 1-2 Pages: 216-220 DOI:10.1016/j.jnucmat.2010.11.091 Published: SEP 1 2011
      30. ELECTRON-OPTICAL PHONON INTERACTION IN CORE-SHELL NANOCOLUMN HETEROSTRUC-TURES MADE OF WURTZITE-TYPE MATERIALS, L. Ion. G. A. Nemnes, C. Visan, D. E. N. Brancus, S. Antohe, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES Volume: 6 Issue: 1 Pages: 331-339 Published: JAN-MAR 2011
      31. PRODUCTION AND CHARACTERIZATION OF CdTe WIRE ARRAYS FOR HYBRID INORGANIC/ORGANIC PHOTOVOLTAIC CELLS, C. Florica, I. Arghir, L. Ion, I. Enculescu, V. A. Antohe, M. Radu, G. Chisulescu, N. Dina, S. Antohe, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES Volume: 6 Issue: 1 Pages: 21-27 Published: JAN-MAR 2011
      32. TEACHING/LEARNING PHOTOVOLTAIC EFFECT IN HIGH SCHOOL, Bostan CG, Dina N, Bulgariu M, Craciun S, Dafinei M , Chitu C, Staicu I, Antohe S, Source: ROMANIAN REPORTS IN PHYSICS Volume: 63 Issue: 2 Pages: 543-556 Published: 2011
      33. Influence of Al doping agents nature on the physical properties of Al:ZnO films deposited by spin-coating technique F-Z. GHOMRANI, S. IFTIMIE, N. GABOUZE, A. SERIER, M. SOCOL, A. STANCULESCU, F. SANCHEZ, S. ANTOHE, M. GIRTAN , Optoelectronics and Advanced Materials-Rapid Communications (OAM-RC), Vol 5 ISS.3 2011_(Printing date March 10, 2011 ), p. 247 - 251
      34. High quality amorphous indium zinc oxide thin films synthesized by pulsed laser deposition, G. Socol, D. Craciun, I.N. Mihailescu, N. Stefan, C. Besleaga, L. Ion, S. Antohe, K.W. Kim, D. Norton, S.J. Pearton, A.C. Galca, V. Craciun, Thin Solid Films, in press doi:10.1016/j.tsf.2011.04.196
      35. Ab initio vibrational and thermal properties of AlN nanowires under axial stress Mitran T. L.; Nicolaev Adela; Nemnes G. A. L. Ion, S. Antohe, COMPU-TATIONAL MATERIALS SCIENCE Volume: 50 Issue: 10 Pages: 2955-2959 DOI: 10.1016/j.commatsci.2011.05.013 Published: AUG-SEP 2011 IDS Number: 802CM
      36. Asessment Instrument MERLIN - MEtal Resistivity Analysis by LINearization , Davidescu D. C.; Dafinei M.; Dafinei A. S. ANTOHE S.; ROMANIAN REPORTS IN PHYSICS Volume: 63 Issue: 3 Pages: 753-781 Published: 2011
      37. Thermopower of atomic-sized wurtzite AlN wires, G.A. Nemnes, Camelia Visan, S. Antohe, PHYSICA E-doi:10.1016/j.physe.2011.07.014 Volume: 43 Issue: 7 Pages: …… ( 2011)
      38. The influence of LiF layer and ZnO nanoparticles addings on the performances of flexible photovoltaic cells based on polymer blends, A. Radu, Sorina Iftimie, Veta Ghenescu, Cristina Besleaga, V. A. Antohe, G. Bratina, L. Ion, Simona Craciun, Mihaela Girtan, S. Antohe, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES VOL. 6, NO 3, JULY-SEPTEMBER 2011, P. 1141-1148
      39. Ab initio study of point-like defects influence on charge transport in AlN nanowires, Camelia Visan , T.L. Mitran, Adela Nicolaev, G.A. Nemnes, L. Ion, S. Antohe, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES VOL. 6, NO 3, JULY - SEPTEMBER 2011, P. 1173-1177
      40. Photovoltaic Properties of the CdS/CdTe Heterojunction Solar Cells Before and After Proton Irradiation , Radu M.; Ghenescu V.; Stan I.; Ion, L ; Besleaga, C; Nicolaev, A ; Mitran, TL ; Tazlaoanu, C ; Radu, A ; Porumb, O; Ghenescu, M ; Gugiu, MM ; Antohe, S , CHALCOGENIDE LETTERS Volume: 8 Issue: 8 Pages: 477-485 Published: AUG 2011,
      41. Influence of PEDOT:PSS Layer on the Performances of ,,Bulk-Heterojunction" Photovoltaic Cells Based on MEH-PPV:PCBM(1:4) Polymeric Blends, S. IFTIMIE, A. RADU, M. RADU, C. BESLEAGA, I. PANA, S. CRACIUN, M. GIRTAN, L. ION, S. ANTOHE, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES VOL. 6, NO 4, OCT.-DEC. 2011, P. 1631-1638
      42. Growth and characterization of nanocrystalline CdS thin films, O. TOMA, Rovena PASCU, Maria DINESCU, Cristina BESLEAGA, T.L. MITRAN, N. SCARISOREANU, S. ANTOHE, CHALCOGENIDE LETTERS VOL. 8, NO. 9, SEPTEMBER 2011, P. 541 - 548
      43. Electrical Properties of (Zn,Cu)O:Mn submicron wiresL. ION, S. ANTOHE, A. SIMA, Marian SIMA, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES VOL. 6, NO 4, OCTOBER-DECEMBER 2011, P. 1695-1700
      44. Experimental configuration for the simultaneous study of magnetization reversal and giant magnetoresitance effects in exchange coupled spin valve structures, G. SCHINTEIE, C. KUNCSER, A. KUNCSER, F. IOFCIU, I. JEPU, S. ANTOHE, Journal of Optoelectronics and Advanced Materials Vol.13 ISS.9- 2011 p.1091 - 1094
      45. On the adhesion features of Ag nanolayers on differently-passivated Si(001)(2x1) substrates, A. IOANID, M. DIEACONU, S. ANTOHE, Journal of Optoelectronics and Advanced Materials Vol.13 ISS.11-12_2011, p. 1470-1477
      46. New Investigations Applied on Cadmium Sulfide Thin Films for Photovoltaic Applications, O. TOMA, S. IFTIMIE, C. BESLEAGA, T. L. MITRAN, V. GHENESCU, O. PORUMB , A. TODERAS, M. RADU, L. ION, S. ANTOHE, CHALCOGENIDE LETTERS VOL. 8, NO. 12, DECEMBER 2011, P. 747 - 756
      47. The Morpho-Structural Characteristics of TiO2 Photoelectrodes Prepared by Advanced Laser Deposition for Dye Sensitized Solar Cells Applications, C. SIMA, C. GRIGORIU, C. TAZLAOANU, S. ANTOHE, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES VOL. 6, NO 4, OCTOBER-DECEMBER 2011, P. 1983-1990
      48. D. Dragoman - Complex conjugate media: alternative configurations for miniaturized lasers, Opt. Commun. 284, 2095-2098, 2011
      49. D. Dragoman - Quantum-like classical mechanics in non-commutative phase space, Proc. Rom. Acad. A 12, 95-99, 2011
      50. D. Dragoman, M. Dragoman, H. Hartnagel - Terahertz generation using a resonant-tunneling-like configuration in graphene, J. Appl. Phys. 109, 124307, 2011
      51. I. Mihalache, D. Dragoman - Graphene analogy to electromagnetic field propagation, J. Opt. Soc. Am. B 28, 1746-1751, 2011
      52. D. Dragoman, M. Dragoman - Time flow in graphene and its implications on the cutoff frequency of ballistic graphene devices, J. Appl. Phys. 110, 014302, 2011; also as e-print: arXiv:1105.4330
      53. M. Dragoman, D. Neculoiu, A. Cismaru, A.A. Muller, G. Deligeorgis, G. Konstantinidis, D. Dragoman, R. Plana - Coplanar waveguide on graphene in the range 40 MHz-110 GHz, Appl. Phys. Lett. 99, 033112, 2011
      54. A. Radoi, M. Dragoman, D. Dragoman - Memristor device based on carbon nanotubes decorated with gold nanoislands, Appl. Phys. Lett. 99, 093102, 2011
      55. M. Dragoman, A. Cismaru, A. Radoi, M. Voicu, D. Dragoman - DNA hybridization detection in a miniaturized electromagnetic band gap resonator, Appl. Phys. Lett. 99, 253106, 2011
      56. A. Ioanid, M. Dieaconu, S. Antohe "A semiempirical potential model for H-terminated functionalized surface of porous silicon", Digest Journal of Nanomaterials and Biostructures, Vol.5, No 4, October-December 2010, p. 947-957
      57. Study of electrical and optical properties of ITO/PEDOT/P3HT:PCBM(1:1)/LiF/Al photovoltaic structures, Sorina Iftimie, A. Majkic, Cristina Besleaga, V.A. Antohe, A. Radu, M. Radu, Iulia Arghir, Camelia Florica, L. Ion, G. Bratina, S. Antohe, Journal of Optoelectronics and Advanced Materials Vol.12 ISS.10- 2010, p. 2170-2174,_(Printing date October 25, 2010)
      58. Effects of proton irradiation on the spectral performance of photovoltaic cells based on CdS/CdTe thin films, L. ION, I. ENCULESCU, S. IFTIMIE, V. GHENESCU, C. TAZLAOANU, C. BESLEAGA, T. L. MITRAN, V. A. ANTOHE, M. M. GUGIU, S. Antohe, Chalcogenide Letters Vol. 7, No. 8, August 2010, p. 521 -530
      59. Temperature dependent resistivity and Hall effect in proton irradiated CdS thin films, L. ION, V. GHENESCU, S. IFTIMIE, V. A. ANTOHE, A. RADU, M. GUGIU, G. VELISA, O. PORUMB, S. Antohe Optoelectronics and Advanced Materials-Rapid Communications (OAM-RC), Vol 4 ISS. 8 2010_(Printing date August 12, 2010 ), p. 1114-1117_
      60. Comparison of the dye-sensitized solar cells performances based on transparent conductive ITO and FTO Cornelia Sima, Constantin Grigoriu, Stefan ANTOHE Thin Solid Films 519 (2010) 595-597 ,
      61. Quantum limits to the electron field emission from tapered conductive sheets Marina Rucsandra Filip, Stefan ANTOHE, Lucian Ion, Masaki Tanemura, 22nd International Vacuum Nanoelectronics Conference, JOULE, 20-24, 2009 Hamamatsu JAPAN Source: JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B Volume: 28 Issue: 2 Pages: C2A64-C2A71 (2010)
      62. Electrical and Photoelectrical Properties of Organic Photovoltaic Cells Based on Polymer Blends ITO/PEDOT/P3HT: PCBM (1:1), Larisa Magherusan, Polona Skraba, Cristina Besleaga, Sorina Iftimie, Nicoleta Dina, Mirela Bulgariu, Carmen-Gabriela Bostan, C. Tazlaoanu, A. Radu, L. Ion, M. Radu, A. Tanase, G. Bratina, S. Antohe, Journal of Optoelectronics and Advanced Materials, Vol. 12 , No. 2, February 18, 2010, p. 212-218
      63. Thermo-electrical properties of nanostructured ballistic nanowires in the R-matrix formalism using the Implicitly Restarted Arnoldi Method, Nemnes, GA; Ion, L; Antohe, S. ; PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES Volume: 42 Issue: 5 Pages: 1613-1617 ( 2010)
      64. Multisegment CdTe nanowire homojunction photodiode, Elena Matei, L. Ion, S. Antohe nd I. Enculescu, Nanotechnology, 21 (2010) 105202 (6pp)
      65. Organic Photovoltaic Cells Based on ZnO Thin Film Electrodes, C.Ghica, L. Ion, G. Epurescu, L. Nistor, S. Antohe, M. Dinescu, Journal of Nanoscience and Nanotechnology, volume 10, Number 2, February 2010, pp. 1322-1326 (5)
      66. M. Dragoman, G. Konstantinidis, A. Cismaru, D. Vasilache, A. Dinescu, D. Dragoman, D. Neculoiu, R. Buiculescu, G. Deligeorgis, A.P. Vajpeyi, A. Georgakilas - Negative differential resistance in GaN nanowire network, Appl. Phys. Lett. 96, 053116, 2010
      67. D. Dragoman - Low-energy conductivity of single- and double-layer graphene from the uncertainty principle, Physica Scripta 81, 035702, 2010; also as e-print: arXiv:0903.2766
      68. D. Dragoman, M. Dragoman, R. Plana - Tunable electrical superlattices in periodically gated bilayer graphene, J. Appl. Phys. 107, 044312, 2010
      69. D. Dragoman, M. Dragoman - There is no Hartman effect in graphene structures, J. Appl. Phys. 107, 054306, 2010
      70. G. Deligeorgis, M. Dragoman, D. Neculoiu, D. Dragoman, G. Konstantinidis, A. Cismaru, R. Plana - Microwave switching of graphene field effect transistor at and far from the Dirac point, Appl. Phys. Lett. 96, 103105, 2010
      71. O. Rasoga, D. Dragoman - Engineered beam shaping effect in anisotropic photonic crystals, Appl. Opt. 49, 2161-2167, 2010
      72. M. Dragoman, A.A. Muller, D. Dragoman, F. Coccetti, R. Plana - Terahertz antenna based on graphene, J. Appl. Phys. 107, 104313, 2010
      73. D. Dragoman - Polarization optics analogy of quantum wavefunctions in graphene, J. Opt. Soc. Am. B 27, 1325-1331, 2010; also as e-print: arXiv:1003.1100
      74. M. Dragoman, D. Neculoiu, G. Deligeorgis, G. Konstantinidis, D. Dragoman, A. Cismaru, A. A. Muller, R. Plana - Millimeter-wave generation via frequency multiplication in graphene, Appl. Phys. Lett. 97, 093101, 2010
      75. D. Dragoman, M. Dragoman, H. Hartnagel - Terahertz generation based on an optically pumped ballistic electron wave swing device, J. Appl. Phys. 108, 026103, 2010
      76. A. Radoi, A. Iordanescu, A. Cismaru, M. Dragoman, D. Dragoman - Ultrabroadband photodetection based on graphene ink, Nanotechnology 21, 455202, 2010
      77. D. Dragoman, M. Dragoman, R. Plana - Graphene-based ultrafast diode, J. Appl. Phys. 108, 084316, 2010
      78. M. Dragoman, D. Neculoiu, D. Dragoman, G. Deligeorgis, G. Konstantinidis, A. Cismaru, F. Coccetti, R. Plana - Graphene for microwaves, IEEE Microwave Magazine 11, 81-86, 2010
      79. D. Dragoman - Kane-like electrons in type II/III heterostructures versus Dirac-like electrons in graphene, J. Appl. Phys. 108, 094302, 2010; also as e-print: arXiv:1010.4895
      80. Self-consistent potentials and linear regime conductance of cylindrical nanowire transistors in the R-matrix formalism, G. A. Nemnes, L. Ion, S. Antohe, Journal of Applied Physics, 106, 113714-113720, (2009)
      81. Submicron wires with nanosized grain structure M. Sima, L. Ion , S. Antohe, E. Vasile Superlattices and Microstructures 46 (6) (2009) 833_839
      82. D. Bazavan, Rosemary Bazavan, I. Enculescu, Elena Matei, C. Necula, L. Ion, S. Antohe - Magnetic properties of NiCu thin films obtained by electrodeposition, Optoelectronics and Advanced Materials-Rapid Communications (OAM-RC), Volume 3, No. 5, May 2009, p. 484 - 488;
      83. Optical Properties of Pulsed-laser Deposited ZnO Thin Films, R. Bazavan, L. Ion, G. Socol, I. Enculescu, D. Bazavan, C. Tazlaoanu, A. Lorinczi, I. N. Mihailescu, M. Popescu, S. Antohe, Journal of Optoelectronics and Advanced Materials, Vol. 11 , No. 4, Joule 2009, p. 425-428
      84. Effects of proton irradiation on structural and optical properties of CdS thin films used in photovoltaic applications Veta GHENESCU, L. ION, M. GHENESCU, M. RUSU, M. GUGIU, G. VELISA, Oana PPORUMB, S. Antohe OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS Volume: 3 Issue: 10 Pages: 1023-1026 Published: 2009
      85. G. Socol, I. N. Mihailescu, A.-M. Albu, S. Antohe, F. Stanculescu, A. Stanculescu, L. Mihut, N. Preda, O. Rasoga, M. Socol (2008): "MAPLE Prepared Polymeric Thin Films for Non-linear Optics Applications", Applied Surface Science, Volume:255 Issue:10,Pages 5611-5614, published: 2009
      86. Physical properties of CdTe nanowires electrodeposited by a template method, for photovoltaic applications, Lucian ION, Ionut ENCULESCU, Stefan ANTOHE, Journal of Optoelectronics and Advanced Materials, Vol. 10 , No. 12, December 2008, 3241-3246
      87. D. Dragoman - Evidence against Klein paradox in graphene, Physica Scripta 79, 015003, 2009; also as e-print: quant-ph/0701083
      88. D. Dragoman, M. Dragoman, R. Plana - Millimeter wave power sensing using micro- and nanoelectromechanical systems, J. Appl. Phys. 105, 014505, 2009
      89. D. Dragoman - Relativistic aberrations in quantum phase space, Optics Communications 282, 1042-1046, 2009; also as e-print: arXiv:0803.0972
      90. D. Dragoman - Classical versus complex fractional Fourier transformation, J. Opt. Soc. Am. A 26, 274-277, 2009
      91. M. Dragoman, D. Dragoman, F. Coccetti, R. Plana, A.A. Muller - Microwave switches based on graphene, J. Appl. Phys. 105, 054309, 2009
      92. M. Al Ahmad, D. Dragoman, M. Dragoman, R. Plana, J.-H. Ting, F.-Y. Huang, T.-L. Li - Multiple negative differential resistances in crossed carbon nanotubes, J. Appl. Phys. 105, 114303, 2009; also as e-print: arXiv:0901.0363
      93. G. Deligeorgis, M. Dragoman, D. Neculoiu, D. Dragoman, G. Konstantinidis, A. Cismaru, R. Plana - Microwave propagation in graphene, Appl. Phys. Lett. 95, 073107, 2009
      94. I. Ionita, D. Dragoman - Anisotropic right/left-handed-material switch, J. Appl. Phys. 106, 053111, 2009
      95. M. Dragoman, D. Dragoman, G. Deligiorgis, G. Konstantinidis, D. Neculoiu, A. Cismaru, R. Plana - Current oscillations in a wide graphene sheet, J. Appl. Phys. 106, 044312, 2009
      96. D. Dragoman, M. Dragoman - Real-time detection of deoxyribonucleic acid bases via their negative differential conductance signature, Phys. Rev. E 80, 022901, 2009
      97. M. Dragoman, D. Dragoman - Graphene-based quantum electronics, Prog. Quantum Electron. 33, 165-214, 2009
      98. M. Dragoman, E. Flahaut, D. Dragoman, M. Al Ahmad, R. Plana - Writing simple RF electronic devices on paper with carbon nanotube ink, Nanotechnology 20, 375203, 2009; also as e-print: arXiv:0901.0362
      99. D. Dragoman - On the quantum-classical character of the quantum wavefunction of material particles, Annales de la Fondation Louis de Broglie 34, 25-34, 2009; also as e-print: quant-ph/0604087
      100. D. Dragoman, A. Dinescu, R. Müller, C. Kusko, A. Herghelegiu, M. Kusko - Waveguiding in PMMA photonic crystals, Rom. J. Inf. Sci. Technol. 12, 308-316, 2009
      101. Structural and morphological properties of NiCu magnetic thin films, D. Bazavan, R. Bazavan, I. Enculescu, E. Matei, L. Ion, S. Antohe, Journal of Optoelectronics and Advanced Materials, Vol. 10 , No. 11, November 2008, 3054-3058
      102. Effects of proton irradiation on CdTe thin films used in photovoltaic applications, R. Bazavan, O. Ghenescu, M. Ghenescu, D. Crisan, A. Radu, L. Ion, S. Antohe, Journal of Optoelectronics and Advanced Materials, Vol. 10 , No. 11, November 2008, 3048-3051
      103. Electrical and optical properties of nanostructured ZnO thin films for optoelectronic applications, L. Ion, M. I. Rusu, G. Socol, I. N. Mihailescu, C. Tazlaoanu, S. Antohe, Journal of Optoelectronics and Advanced Materials, Vol. 10 , No. 10, October 2008, 2599-2602
      104. G. Socol, I. N. Mihailescu, A.-M. Albu, S. Antohe, F. Stanculescu, A. Stanculescu, L. Mihut, N. Preda, O. Rasoga, M. Socol (2008): "MAPLE Prepared Polymeric Thin Films for Non-linear Optics Applications", Applied Surface Science, Volume:255 Issue:10,Pages 5611-5614, published: 2009
      105. Synthesis and properties of Ba(Zn1/3Ta2/3)O3 for microwave and millimeter wave applications, A Ioachim, M.I. Toacsan, M. G. Banciu, L. Nedelcu, C. A. Dutu, H. V. Alexandru, S. Antohe, E. Andronescu, S. Jinga, P. Nita, Thin Solid Films 516 (2008) 1558-1562
      106. D. Dragoman - The localized quantum vacuum field, Physica Scripta 77, 035005, 2008; also as e-print: quant-ph/0603005
      107. M. Dragoman, D. Dragoman - Plasmonics: applications to nanoscale terahertz and optical devices, Prog. Quantum Electron. 32, 1-41, 2008
      108. M. Dragoman, D. Neculoiu, A. Cismaru, D. Dragoman, K. Grenier, S. Pacchini, L. Mazenq, R. Plana - High quality nanoelectromechanical microwave resonator based on a carbon nanotube array, Appl. Phys. Lett. 92, 063118, 2008
      109. D. Dragoman, S. Bogdan - The Aharonov-Bohm effect in the momentum space, Opt. Commun. 281, 2685-2689, 2008; also as e-print: quant-ph/0503172
      110. D. Dragoman - Quantum electric circuits analogous to ballistic conductors, J. Appl. Phys. 103, 084310, 2008; also as e-print: arXiv:0708.1332
      111. D. Dragoman, M. Dragoman - Response to "Comment on 'Negative differential conductance of electrons in graphene barrier' [Appl. Phys. Lett. 90, 143111 (2007)]", Appl. Phys. Lett. 92, 216102, 2008
      112. M. Dragoman, G. Konstantinidis, A. Kostopoulos, D. Dragoman, D. Neculoiu, R. Buiculescu, R. Plana, F. Coccetti, H. Hartnagel - Multiple negative resistances in trenched structures bridged with carbon nanotubes, Appl. Phys. Lett. 93, 043117, 2008
      113. D. Dragoman, M. Dragoman - Terahertz Bloch oscillations in periodic graphene structures, Appl. Phys. Lett. 93, 103105, 2008
      114. D. Dragoman, M. Dragoman - Tunneling nanotube radio, J. Appl. Phys. 104, 074314, 2008
      115. D. Dragoman, M. Dragoman, A.A. Muller - Graphene-a one-atom-thick material for microwave devices, Rom. J. Inf. Sci. Technol. 11, 29-35, 2008
      116. Transport properties of electrodeposited ZnO nanowires, C. Tazlaoanu,L. Ion, I. Enculescu, M. Sima, Elena Matei, R. Neumann, Rosemary Bazavan, D. Bazavan, S. Antohe, Physica E: Low-dimensional Systems and Nanostructures, Vol 40/7 pp 2504-2507, 2007
      117. Electrical properties of electrodeposited CdS nanowires, M. Ghenescu, L. Ion, I. Enculescu, C. Tazlaoanu, V. A. Antohe, M. Sima, M. Enculescu, E. Matei, R. Neumann, O. Ghenescu, V. Covlea, S. Antohe, Physica E: Low-dimensional systems and Nanostructures, Vol 40/7 pp 2485-2488, 2007
      118. Author(s): Ion, L; Antohe, VA; Ghenescu, M, Antohe S. Source: THIN-FILM COMPOUND SEMICON-DUCTOR PHOTOVOLTAICS - 2007 Volume: 1012 Pages: 343-348 Published: 2007, The effect of ionizing radiations on the structural, electrical and optical properties of AIIBVI polycrystalline thin films used as solar cell materials
      119. Deposition and properties of CdTe nanowires prepared by template replication, I. Enculescu, M. Sima, M. Enculescu, M. Enache, L. Ion, S. Antohe, R. Neumann, Phys. Status Solidi (b), 244, 1607 (2007).
      120. Transitions of barium strontium titanate ferroelectric ceramics for different strontium content, A Ioachim, M.I. Toacsan, M. G. Banciu, L. Nedelcu, A. Dutu, S. Antohe, C. Berbecaru, L. Georgescu, G. Stoica, H. V. Alexandru, Thin Solid Films 515 (2007) 6289-6293
      121. Photosensitization of ZnO Nanostructured Thin Films with Organic Dyes, C. Tazlaoanu, L. Ion, G. Socol, Marcela Socol, I.N. Mihailescu, F. Stanculescu, I. Enculescu, Felicia Ionescu, Oana Ghenescu, Larisa Magherusan, S. Antohe, Journal of Optoelectronics and Advanced Materials, Vol. 9 , No. 5, May 2007, 1342-1346
      122. Defects Induced by Ionizing Radiations in AII-BVI Pollycrystalline Thin Films Used as Solar Cell Materials S. Antohe, L. Ion, V. A. Antohe, M. Ghenescu, H. Alexandru, Journal of Optoelectronics and Advanced Materials, Vol. 9 , No. 5, May 2007, 1382-1394
      123. D. Dragoman, M. Dragoman - Physical mechanism of negative differential conductance in substrateless metallic carbon nanotubes, Physica E 36, 158-162, 2007
      124. D. Dragoman, M. Dragoman - Variable capacitance mechanisms in carbon nanotubes, J. Appl. Phys. 101, 036111, 2007
      125. D. Dragoman - Photon states from propagating complex electromagnetic fields, J. Opt. Soc. Am. B 24, 922-927, 2007; also as eprint: quant-ph/0606096
      126. D. Dragoman, M. Dragoman - Negative differential resistance of electrons in graphene barrier, Appl. Phys. Lett. 90, 143111, 2007; also as e-print: quant-ph/0701011
      127. D. Dragoman, M. Dragoman - Metamaterials for ballistic electrons, J. Appl. Phys. 101, 104316, 2007; also as e-print: quant-ph/0701012
      128. M. Dragoman, D. Dragoman, R. Plana - Modeling of RF energy sensing and harvesting using the giant thermoelectric effect in carbon nanotubes, Appl. Phys. Lett. 91, 173117, 2007
      129. D. Dragoman, M. Dragoman - Giant thermoelectric effect in graphene, Appl. Phys. Lett. 91, 203116, 2007
      130. On the Optical Crystal Properties of Quantum-well GaIn9N)As/GaAs Semiconductors Grown by Molecular-Beam Epitaxy, E. M. Pavelescu, J. Slotte, V. D. S. Dhaka, K. Saarinen, S. Antohe, Gh. Cimpoca, M. Pessa, Journal of Crystal Growth 297 (2006) 33-37
      131. Dopant influence on BST ferroelectric solid solutions family, A. Ioachim, H. V. Alexandru, C. Berbecaru, S. Antohe, F. Stanculescu, M. G. Banciu, M. I. Toacsen, L. Nedelcu, D. Ghetu, A. Dutu, G. Stoica, Materials Science and Engineering C 26 (2006) 1156-1161
      132. D. Dragoman, L. Filip - Analytic transmission for field emission from coated cold cathodes, J. Appl. Phys. 99, 094307, 2006
      133. D. Dragoman, M. Dragoman - Electromagnetic wave propagation in dense carbon nanotube arrays, J. Appl. Phys. 99, 076106, 2006
      134. D. Dragoman, M. Dragoman - Voltage-controlled high-frequency oscillations based on suspended semiconducting carbon nanotubes, Phys. Rev. B 73, 125417, 2006
      135. D. Dragoman, M. Dragoman - Proposal for multiple-valued logic in gated semiconductor carbon nanotubes, Physica E 33, 178-181, 2006
    5. Awards at National Level:
      1. Prof. Dr. Stefan ANTOHE ,,Horia Hulubei”-Prize of Romanian Academy for the Review Paper: ,,Electronic and Optoelectronic Devices Based on Organic Thin Films ‘’ published in HANDBOOK OF ORGANIC ELECTRONICS AND PHOTONICS, Electronic Materials and Devices, Edited by Hari Singh Nalwa, Volume 1 : Pages (405-446), AMERICAN SCIENTIFIC PUBLISHERS, Los Angeles, California, USA, 2006, ISBN : 1-58883-096-9
    6. PhD Thesis
      1. PhD Advisor Prof. Dr Stefan ANTOHE "Contributions to the Study of Electrical and Magneto-Optical Properties of Semiconducting Thin Films", PhD Dan BAZAVAN,
      2. PhD Advisor Prof. Dr Stefan ANTOHE "Computing Modeling of Structural and Transport Properties of Porous Silicon" PhD Adrian A. DAFINEI ,
      3. PhD Advisor Prof. Dr Stefan ANTOHE "Studies on the Sinthesis and Characterization of Carbon nanostructures Prepared by Laser Pyrolysis", PhD Iuliana SOARE,
      4. PhD Advisor Prof. Dr Stefan ANTOHE "Contributions to Study of the Effect of Ionizing radiations on the Structural and Electrical Properties of A2B6 Semiconducting Compounds" PhD Ing. Fiz. Marian Traian GHENESCU
      5. PhD Advisor Prof. Dr Stefan ANTOHE "Contributions to the Preparation and Characterization of the Nanostructures Obtained by Laser Pyrolysis" PhD Carmen Lavinia GAVRILA-FLORESCU,
      6. PhD Advisor Prof. Dr Stefan ANTOHE “Contributions to Study of Modern Methods of Teaching, Learning and Assessment at Physics” PhD Delia Constanta DAVIDESCU
      7. PhD Advisor Prof. Dr Stefan ANTOHE “Contributions to the Study of Electronics and Optoelectrinics Devices based on Organic and Inorganic Semiconductors” PhD Cezar TAZLAOANU
      8. PhD Advisor Prof. Dr Stefan ANTOHE “The Study of the Effect of Ionizing Radiation on the Electrical and Optical Properties of Semiconducting Thin Films” PhD Veta GHENESCU
      9. PhD Advisor Prof. Dr Stefan ANTOHE “Contributions to the Study of Electrical and Optical Properties of Diode Structures based on Organic and Inorganic Semiconductors” PhD Marina Larisa MAGHERUSAN
      10. PhD Advisor Prof. Dr Stefan ANTOHE “Electrical and Optical Properties of Diode Structures Based on Semiconducting Thin Films”, PhD. Rosemary BAZAVAN
      11. PhD Advisor Prof. Dr Stefan ANTOHE ,,Defects induced by ionic implantation in different materials (AII-BVI Compound, Nuclear Ceramics) and characterization of their physical properties", PhD in Physics Gihan VELISA. Defended in 01.02.2011, Calificativ ,,Very Well",
      12. PhD Advisor Prof. Dr Stefan ANTOHE ,,Contribution at study of nanostructured organic and inorganic materials for flexible optoelectronic devices", PhD in Physics Madalin Ion RUSU. Defended in 16.03.2011, Calificativ ,,Very Well",
      13. PhD Advisor Prof. Dr Stefan ANTOHE "Physics in context inter-and trans-disciplinar" PhD in Physics Carmen Gabriela CODREANU (BOSTAN) Defended in 13.04.2011, Calificativ ,,Very Well",
      14. PhD Advisor Prof. Dr Stefan ANTOHE "Contributions to study of structural, electrical and optical properties of nanostructured thin films used to electronic and optoelectronic devices", PhD in Physics Mihaela FILIPESCU, Defended in 26.07.2011, Calificativ ,,Very Well" and Distinction ,,Summa Cum Laude"
      15. PhD Advisor Prof. Dr Stefan ANTOHE "Contributions to preparation and characterization of photovoltaic cells for space applications" PhD in Physics Oana-Lavinia PORUMB, Defended in 28.07.2011, Calificativ ,,Very Well"
      16. PhD Advisor Prof. Dr Stefan ANTOHE Contributions to study of electrical and optical properties of semiconducting thin films", PhD in Physics Vlad COVLEA, Defended in 25.08.2011, Calificativ ,,Very Well", Dinstinction ,,CUM LAUDE"
      17. PhD Advisor Prof. Dr Stefan ANTOHE "Contribution to study of photovoltaic cells based on organic and inorganic nanostructured thin films", PhD in Physics Sorina IFTIMIE, Defended in 01.09.2011, Calificativ ,,Very Well"
      18. PhD Advisor Prof. Dr Stefan ANTOHE "Preparation and characterization of new materials with ionic conductivity for Fuel Cells applications" PhD in Physics Adriana-Elena ANDRONIE (casatorita BALAN), Defended in 19.09.2011, Calificativ ,,Very Well"
      19. PhD Advisor Prof. Dr Stefan ANTOHE "IR and Raman Spectroscopy Applications to Study of Materials" PhD in Physics Alexandru TODERAS Defended in 19.09.2011, Calificativ ,, Well"
      20. PhD Advisor Prof. Dr Stefan ANTOHE "Energetical Spectrum and Charge Transport in q-1D Systems Based on AIIIBV Semiconducting Compounds" PhD in Physics Camelia VISAN, Defended in 21.09.2011, Calificativ ,,Very Well"
      21. PhD Advisor Prof. Dr Stefan ANTOHE "Preparation and Characterization Methods of Semiconducting Nanostructures for Electronics and Optoelectronics Applications" PhD in Physics Adrian RADU Defended in 21.09.2011, Calificativ ,,Very Well"
      22. PhD Advisor Prof. Dr Stefan ANTOHE "Contribution to study of teching methods for nonconventional energy sources based on photovoltaic effect" PhD in Physics Nicoleta BANICA (casatorita DINA), Defended in 26.09.2011, Calificativ ,,Very Well"
      23. PhD Advisor Prof. Dr Stefan ANTOHE "Aproaches of quality increasing in physics education" PhD in Physics Catalin CHITU, Defended in 28.09.2011, Calificativ ,,Well"
      24. PhD Advisor Prof. Dr Stefan ANTOHE ,,Contributions to development of structures for direct solar energy conversion into electricity trough photovoltaic effect", PhD in Physics Mihai RADU, Defended in 27.10.2011, Calificativ ,,Well"
    30.10.2012 					Prof. Dr. Stefan ANTOHE 
    
    
    
    Prof . Dr. Stefan ANTOHE, Vice Dean
    ________________________________________
    Faculty of Physics
    University of Bucharest
    P.O.Box: MG-11 Magurele - Ilfov
    077125 ROMANIA
    Phone: +40 21 4574535; Fax: +40 21 4574418
    E-mail: 	santohe@solid.fizica.unibuc.ro
               	s_antohe@yahoo.com
    http://solid.fizica.unibuc.ro/staff/antohe.html