Doctoral programs supported by PhD coordinators who are members of the MDEO Center


The MDEO Center offers opportunities for doctoral training and advanced research in the fields related to the physics of semiconductor materials, electronics, and optoelectronics. The program focuses on the preparation and characterization of materials and nanostructures that can be integrated into innovative devices such as photovoltaic cells, sensors and biosensors. In addition, significant emphasis is placed on numerical simulations and the modeling of physical phenomena occurring within the investigated structures.

Throughout the doctoral program, PhD students benefit from access to the research infrastructure of the MDEO center, as well as to the facilities available within the research institutes on the Măgurele science platform through national and international collaborations. In addition, they are actively involved in scientific projects and in the preparation of specialized scientific publications. The program aims to develop advanced fundamental and applied research skills, as well as to train specialists in cutting-edge nanotechnologies.

Complete information about the doctoral programs is available on the website of the Physics Doctoral School (SDF) of the University of Bucharest, available HERE.

PhD Supervisors affiliated with the Physics Doctoral School of the University of Bucharest and members of the MDEO Research & Development Center:

Prof. Emeritus PhD Ștefan ANTOHE || List of coordinated theses

Prof. PhD Daniela DRAGOMAN || List of coordinated theses

Prof. PhD Eng. Habil. Vlad-Andrei ANTOHE

Prof. PhD Habil. Lucian ION

Assoc. Prof. PhD Habil. Claudia Gabriela CHILOM

Assoc. Prof. PhD Eng. Habil. Marcela-Elisabeta BĂRBÎNȚĂ-PĂTRAȘCU




Prof. Emeritus PhD Ştefan ANTOHE

Coordinated PhD Theses
Topic:Study of new binary and ternary organic compounds for applications in electronic and optoelectronic devices
Domain:Physics
Direction:Physics of Condensed Matter
Language:Romanian, English

Topic description: 
Lately, great progress has been made both in terms of conversion efficiency (sometimes exceeding 20% [1]) and in terms of the stability of organic solar cells (OSCs), belonging to the third generation of solar cells, and if we refer to Perovskite-based structures (PSCs) they have exceeded the efficiency of 25% [2]. Taking into account the expertise of the research group and infrastructure from the Research & Development Center for Materials and Electronic and Optoelectronic Devices (MDEO) [3-5], the general objective of the proposed theme will be to test new ternary compounds of the "two in one" type: two donors with a non-fullerene acceptor (D1, D2, A) or a donor with two non-fullerene acceptors (D,  A1, A2) in photovoltaic cell structures with a single absorber layer.

  References:
  1. K. Jin, Z. Xiao and L. M. Ding, "18.69% PCE from organic solar cells", Journal of Semiconductors 42, 060502 (2021)
  2. "National Renewable Energy Laboratory", U. S. Department of Energy, Office of Energy Efficiency and Renewable Energy, https://www.nrel.gov/pv/organic-photovoltaic-solar-cells.html
  3. Ș. Antohe, S. Iftimie, L. Hrostea, V. A. Antohe and M. Gîrțan, "A critical review of photovoltaic cells based on organic monomeric and polymeric thin film heterojunctions", Thin Solid Films 642, 219-231 (2017)
  4. A. I. Radu (Călugăr), V. A. Antohe, S. Iftimie, A. Radu, M. Filipescu, L. Ion, M. Dinescu and Ş. Antohe, "On the physical and photo-electrical properties of organic photovoltaic cells based on 1,10-Phenanthroline and 5,10,15,20-Tetra(4-pyridyl)-21H,23H-porphine non-fullerene thin films", Applied Surface Science 531, 147332 (2020)
  5. A. I. Radu, V. A. Antohe, S. Iftimie, I. Antohe, M. Filipescu, A. Radu, D. Coman, M. L. Stîngescu, M. Dinescu and Ș. Antohe, "Study of a new composite based on SnO2 nanoparticles - P3HT:PC71BM co-polymer blend, used as potential absorber in bulk heterojunction photovoltaic cells", Materials Today Communications 33, 104757 (2022)

Topic:Preparation and Characterization of Thin Films of Cadmium-Free A2-B6 Semiconductor Compounds for Applications in Electronic and Optoelectronic Devices
Domain:Physics
Direction:Physics of Condensed Matter
Language:Romanian, English

Topic description:
Taking into account the expertise of the research group and the infrastructure at the Research & Development Center for Materials and Electronic and Optoelectronic Devices (MDEO) [1-6], the general objective of the proposed theme will be the preparation and characterization of very thin films made of Cadmium-free A2-B6 compounds, and their testing in efficient photovoltaic cells for the shorter wave lengths of solar spectrum, but also in photodetection applications in the UV-Vis field, and in space applications.

  References:
  1. Ș. Antohe, L. Ion and V. Ruxandra, "Electrical properties of electron irradiated thin polycrystalline CdSe layers", J. Appl. Phys. 90(12), 5928-5932 (2001)
  2. O. Toma, L. Ion, M. Gîrțan and Ș. Antohe, "Optical, morphological and electrical studies of thermally vacuum evaporated CdTe thin films for photovoltaic applications", Solar Energy 108, 51-60 (2014)
  3. O. Toma, L. Ion, S.Iftimie, V. A. Antohe, A. Radu, A. M. Răduță, D. Manica and Ș. Antohe, "Physical properties of rf-sputtered ZnS and ZnSe thin films used for double-heterojunction ZnS/ZnSe/CdTe photovoltaic structures", Applied Surface Science 478, 831-839 (2019)
  4. D. Manica, V. A. Antohe, A. Moldovan, R. Pascu, S. Iftimie, L. Ion, M. P. Suchea and Ș. Antohe, "Thickness Effect on Some Physical Properties of RF Sputtered ZnTe Thin Films for Potential Photovoltaic Applications", Nanomaterials 11(9), 2286 (2021)
  5. A. M. Răduță, A. M. Panaitescu, M. Manica, S. Iftimie, V. A. Antohe, O. Toma, A. Radu, L. Ion, M. P. Suchea and Ș. Antohe, "Effect of Deposition Working Power on Physical Properties of RF-Sputtered CdTe Thin Films for Photovoltaic Applications", Nanomaterials 14(6), 535 (2024)

Topic:Didactic Strategies for Teaching Notions with Involvement in the Development of the National Physics Curriculum. Case Study: Handover of Unconventional Energy Sources
Domain:Physics
Direction:Educational Physics
Language:Romanian, English

Topic description:
Taking into account the impact of the existence of the "Educational Physics" Study Direction within Physics Doctoral School (SDF) of the University of Bucharest, an unique direction at national level, demonstrated by over 50 professors from high schools who have obtained the Title of Doctor in Physics, and the expertise of the Doctoral Supervisors within SDF, the objective of the proposed theme will be to develop a course on New Renewable Energy Sources with a focus on Direct Energy Conversion of solar energy through photovoltaic effect.

  References:
  1. C. G. Bostan, N. Dina, M. Bulgariu, S. Crăciun, M. Dafinei, C. Chitu, I. Staicu and Ș. Antohe, "Teaching/Learning Photovoltaic Effect in High School", Romanian Reports in Physics 63(2), 543-556 (2011)
  2. D. C. Davidescu, M. Dafinei, A. Dafinei and Ș. Antohe, "Asessment Instrument Merlin-Metal Resistivity Analysis by Linearization", Romanian Reports in Physics 63(3), 753-781 (2011)
  3. N. Dina, S. Crăciun, M. Bulgariu and Ș. Antohe, "Teaching of Alternative Energy Sources in Romanian School", Romanian Reports in Physics 64(3), 868-877 (2012)
  4. F. Iofciu, C. Miron and Ș. Antohe, Studying Advanced Science Concepts using Constructivist Strategies in Middle and High School", Romanian Reports in Physics 65(2), 591-606 (2013)
  5. C. Radu, O. Toma, I. Antohe, C. Miron and Ș. Antohe, "A Critical Review of the Photovoltaic Effect Teaching in High-School", Romanian Reports in Physics 76, 901 (2024)

Prof. PhD Daniela DRAGOMAN

 Coordinated PhD Theses
Topic:Interfacial Instability Induced by Liquid Droplets Interactions
Domain:Physics
Direction:Physics of Condensed Matter
Language:Romanian, English

Topic description:
Abstract: Optofluidic systems may be effectively used to investigate in detail the morphological transitions of droplet interfaces caused by complex phenomena such as evaporation, the presence of vapor gradients around the droplets, capillary forces at the liquid-gas interface, and Marangoni effects due to surface tension gradients. The combined influence of these phenomena results in long-range interactions between droplets, leading to surface instabilities. In fluid dynamics, droplets interaction can result in merging or bouncing. Therefore, controlling instabilities during the pre-contact phase of droplet interfaces is crucial for a deeper phenomenological understanding of these interactions.
Research Aims: The aim of this doctoral grant to advance the phenomenological understanding of both direct and long-range interactions between droplets by conducting a comprehensive analysis of capillary interactions at fluid interfaces. Even without direct contact, droplets are subjected attractive or repulsive forces [1], depending on their surface tension properties. These forces arise from capillary interactions by the vapor surrounding the droplets, leading to oscillations on their surfaces. The structural modifications of the droplets will be used to achieve controlled displacement, enabling selective droplet interactions for potential medical applications. To neglect gravitational effects and focus on capillary interactions, the behavior of droplets in microchannels are followed [2] using laser-liquid interactions for droplet control [3] obtaining stable emulsions for drug delivery applications [4]. Optical techniques such as interferometry and shadowgraphy [5,6] are used to analyze morphological transitions and long-range interactions through advanced image analysis, using computational codes developed in MATLAB and Python.

  References:
  1. H. Zhao, D. Orejon, K. Sefiane, M.E.R. Shanahan, Long-Range Vapor-Mediated Interactions between Adjacent Droplets, Langmuir 41(6), 3986–3994 (2025)
  2. L. Mazutis, A.D. Griffiths, Selective droplet coalescence using microfluidic systems, Lab on a Chip 12, 1800-1806 (2012)
  3. Z.S. Tareie, H. Latifi, K. Soltanlou, A. Heidariazar, M. Mahdi Majidof, M. Lafouti, Manipulation, aggregation, fusion and separation of droplets using laser-induced Marangoni force, Results in Optics 10, 100347 (2023)
  4. S. Sart, G. Ronteix, S. Jain, G. Amselem, C.N. Baroud, Cell culture in microfluidic droplets, Chemical Reviews 122(7), 7061–7096 (2022)
  5. S. Dehaeck, A.Y. Rednikov, H. Machrafi, A.I. Garivalis, P. Di Marco, S.K. Parimalanathan, P. Colinet, Active role of vapor clouds around evaporating sessile droplets in microgravity: Marangoni jets and electroconvection, Langmuir 39(27), 9343–9357 (2023)
  6. J.M. Schulz, H. Junne, L. Böhm, M. Kraume, Development of an experimental setup applying rainbow schlieren deflectometry for visualization and quantification of heat and mass transfer in multiphase systems, 5th International Conference on Experimental Fluid Mechanics, ICEFM 2018, Munich, Germany, July 2-4 (2018), https://athene-forschung.unibw.de/doc/124120/124120.pdf

Topic:Study and development of hybrid techniques for tiled-aperture coherent beam combination of high-power ultrashort laser pulses
Domain:Physics
Direction:Physics of Condensed Matter
Language:Romanian, English

Topic description:
Coherent beam combination (CBC) in a parallel (tiled-aperture) configuration is an essential technique to achieve ultra-high intensities for low-repetition-rate, petawatt-class femtosecond laser pulses. This approach helps overcome fundamental limitations in high-power chirped-pulse amplification (CPA) systems, including undesirable nonlinear effects (specifically self-focusing and wavefront distortion). It also overcomes the constraints imposed by the damage thresholds of optical components in the CPA chain and the limits of the available size of the optical components. Despite these advantages, CBC faces significant challenges. In free-space high-power pulsed laser systems, pump-source perturbations, air flow, thermal distortions, and environmental vibrations necessitate high-precision, real-time correction of phase errors (including piston errors) and precise alignment of the pulses’ temporal envelopes.
The proposed doctoral research aims to address these challenges by employing interferometric detection methods [1,2] of phase errors, along with active control methods [3] for real-time phase correction. Different interferometric methods, capable of ensuring the timing jitter compensation in the range of 100 as accuracy, based on the generation of quadrature electrical signals generation [1,2] or on Hansch-Couillaud type detection systems [3], will be studied comparatively. To overcome the difficulties of an active feedback control caused by the low repetition rate of high-power fs-lasers compared to the frequencies of phase fluctuations, a continuous wave laser will be used as reference light for phase error measurement by interferometric methods [4].
Additionally, nonlinear optical cross-correlation methods, based on sum-frequency generation in nonlinear crystals [5,6], will be studied to ensure an automatic control of both spatial and temporal overlap of the pulses, compensating for timing jitter of their temporal envelopes with femtosecond accuracy.
By combining these methods, a highly efficient, distortion-free beam combination could be obtained. As a result, a hybrid technique will be developed for the CBC of high-power femtosecond laser pulses.

  References:
  1. S. Simion et al., Design considerations for an interferometer for coherent combination of ultrashort laser pulses, Rom. Rep. Phys. 62(3), 644-651 (2010)
  2. S. Simion Real-time synchronization of ultrashort pulse laser beams, based on interferometric methods, (PhD Thesis), 2015
  3. S.N. Bagayev, V.E. Leshchenko, V.I. Trunov, E.V. Pestryakov, S.A. Frolov, Coherent combining of femtosecond pulses parametrically amplified in BBO crystals, Opt. Lett. 39, 1517-1520 (2014)
  4. C. Peng et al., Four-Beam Tiled-Aperture Coherent Beam Combining of High-Power Femtosecond Laser with Two Compressors, IEEE Photonics Journal 14(1), 3305804 (2022)
  5. Y. Cui et al., High Precision and Large Timing Jitter Measurement and Control of Ultrashort Laser Pulses, IEEE Photonics Technology Letters 28 (20), 2215-2217 (2016)
  6. C. Peng, X. Liang, R. Liu, W. Li, R. Li, High-precision active synchronization control of high-power, tiled-aperture coherent beam combining, Opt. Lett. 42, 3960-3963 (2017)


Prof. PhD Eng. Habil. Vlad-Andrei ANTOHE
Topic:Electrochemically-synthesized nanostructured thin films for electronics and optoelectronics
Domain:Physics
Direction:Physics of Condensed Matter
Language:Romanian, English

Topic description:
Direct conversion of solar energy into electricity through photovoltaic effect represents a viable alternative for new energy sources. In this sense, there is a permanent interest for increasing the conversion efficiency of the solar cells, despite their type and generation, while decreasing their fabrication costs. One option in this regard is to exploit the advantages of modern nanotechnologies that can bring additional performance or new functionalities to electronic and optoelectronic devices.
For this purpose, a modular experimental platform for implementing cost-effective electrochemical processes has been developed in recent years within Research & Development Center for Materials and Electronic & Optoelectronic Devices (MDEO), from the Faculty of Physics of the University of Bucharest. The potential of this experimental configuration has been already demonstrated for the electrochemical synthesis of Cadmium Telluride (CdTe) thin films, but also for the growth of ordered arrays of nanowires or nanotubes vertically-oriented in respect to the substrate, targeting various applications [1-3].
In these circumstances, the general objective of this doctoral program is based on the implementation of electrochemical processes for the preparation of nanostructured thin films, with applicability within optoelectronic devices, such as solar cells or photo-detectors. In particular, the optimization of electrochemical synthesis procedures of Cadmium (Cd) - free chalcogen-based compounds will be considered, for which the MDEO Center has the necessary scientific expertise and infrastructure [4-6].
Taking thus into account the expertise developed in recent years within MDEO Center, the experience of the research group, but also the available research infrastructure, the premises for the successful achievement of the proposed objectives are ensured.

  References:
  1. A M. Răduță, A M. Panaitescu, M. Manica, S. Iftimie, V A. Antohe, O. Toma, A. Radu, L. Ion, M P. Suchea, Ș. Antohe, Effect of Deposition Working Power on Physical Properties of RF-sputtered CdTe Thin Films for Photovoltaic Applications, Nanomaterials 14(6), 535 (2024)
  2. A.M. Panaitescu, I. Antohe, C. Locovei, S. Iftimie, Ș. Antohe, L. Piraux, M.P. Suchea, V.A. Antohe, Effect of the Cadmium Telluride Deposition Method on the Covering Degree of Electrodes Based on Copper Nanowire Arrays, Applied Sciences 12(15), 7808 (2022)
  3. C. Locovei, N. Filipoiu, A. Kuncser, A.E. Stanciu, Ș. Antohe, C.F. Florica, A. Costas, I. Enculescu, L. Piraux, V. Kuncser, V.A. Antohe, Unidirectional Magnetic Anisotropy in Dense Vertically-Standing Arrays of Passivated Nickel Nanotubes, Nanomaterials 10(12), 2444 (2020)
  4. A.M. Panaitescu, V.A. Antohe, Study of optical and electrical properties of RF-sputtered ZnSe/ZnTe heterojunctions for sensing applications, Coatings 13(1), 208 (2023)
  5. A.M. Panaitescu, I. Antohe, A.M. Răduță, S. Iftimie, Ș. Antohe, C.N. Mihăilescu, V.A. Antohe, Morphological, Optical and Electrical Properties of RF-Sputtered Zinc Telluride Thin Films for Electronic and Optoelectronic Applications, AIP Advances 12, 115013 (2022)
  6. O. Toma, V.A. Antohe, A.M. Panaitescu, S. Iftimie, A.M. Răduță, A. Radu, L. Ion, Ș. Antohe, Effect of RF Power on the Physical Properties of Sputtered ZnSe Nanostructured Thin Films for Photovoltaic Applications, Nanomaterials 11(11), 2841 (2021)

Topic:Development of smartly-engineered nanowire-based substrates for sensing applications
Domain:Physics
Direction:Physics of Condensed Matter
Language:Romanian, English

Topic description:
Development of large arrays of nanowires and nanotubes of different geometries and with modulated compositions, triggered new prospects from the practical point of view, mainly because these types of nanostructures with axial symmetry in conjunction with diverse organic or inorganic materials form nanocomposite films with special mechanical, thermal, optical, and electrical properties. As demonstrated so far, the applicative range of such nanowires can span from electrodes for micro-batteries and microsupercapacitors [1,2], to thermoelectricity [3,4], as well as more frequently to capacitive or chemiresistive sensing and biosensing devices [5,6]. For the latter category, these nanostructures uniquely provide very large surface-to-volume ratios, an extremely important property that allows preparation of detectors with immense active surfaces and reduced physical dimensions.
In this context, this PhD Research Program is based on the fabrication and characterization of such large arrays and patterns of quasi one-dimensional nanostructures made-up of metals and other organic or inorganic compounds, targeting their integration within sensors and biosensors with superior performance, especially in terms of sensitivity and limit-of-detection. The framework program will be mainly carried out within Research & Development Center for Materials and Electronic & Optoelectronic Devices (MDEO), as part of the Faculty of Physics of the University of Bucharest. In relation to this research work, a versatile electrochemical synthesis platform is available for nanowires and nanotubes fabrication by template-free or template-assisted electrochemical means. Also, experimental settlements are available for sensors and biosensors’ characterization, including a modern electrochemical-quartz crystal microbalance (E-QCM) setup for mass-sensitive in-situ measurements. This system is an essential tool to deeply investigate the dynamic response of reactions at electrode-liquid interfaces, helping thus in the optimization process of various sensing and biosensing scenarios.
Considering the expertise developed at MDEO in the last years and the experience of the PhD supervisor, as well as the available research infrastructure, the successful accomplishment of the objectives proposed in this doctoral program is guaranteed.

  References:
  1. J.O. Omale, P. Van Velthem, V. A. Antohe, A. Vlad, L. Piraux, Effects of Electrolyte Additives and Nanowire Diameter on the Electrochemical Performance of Lithium-ion Battery Anodes Based on Interconnected Nickel-Tin Nanowire Networks, Energy Technology 9, 2100062 (2021)
  2. J. O. Omale, R. Rupp, P. Van Velthem, V. Van Kerckhoven, V. A. Antohe, A. Vlad, L. Piraux, Threedimensional microsupercapacitors based on interdigitated patterns of interconnected nanowire networks, Energy Storage Materials 21, 77-84 (2019)
  3. L. Piraux, N. Marchal, P. Van Velthem, T. da Câmara Santa Clara Gomes, F. Abreu Araujo, E. Ferain, J. P. Issi, V. A. Antohe, Improved electrical and thermoelectric properties of electrodeposited Bi1-xSbx nanowire networks by thermal annealing, Nanoscale Advances 7(1), 124-132 (2025)
  4. L. Piraux, N. Marchal, P. Van Velthem, T. da Câmara Santa Clara Gomes, E. Ferain, J. P. Issi, V. A. Antohe, Polycrystalline bismuth nanowire networks for flexible longitudinal and transverse thermoelectrics, Nanoscale 15(33), 13708-13717 (2023)
  5. L. Piraux, V. A. Antohe, E. Ferain, D. Lahem, Self-supported three-dimensionally interconnected polypyrrole nanotubes and nanowires for highly sensitive chemiresistive gas sensing, RSC Advances 6, 21808-21813 (2016)
  6. V. A. Antohe, A. Radu, M. Matéfi-Tempfli, A. Attout, S. Yunus, P. Bertrand, C. A. Dutu, A. Vlad, S. Melinte, S. Matéfi-Tempfli, L. Piraux, Nanowire-templated microelectrodes for high-sensitivity pH detection, Appl. Phys. Lett. 94(7), 3118 (2009)


Assoc. Prof. PhD Habil. Claudia Gabriela CHILOM
Topic:Processing and analysis methods in medical imaging
Domain:Physics
Direction:Experimental and Computational Biophysics, Medical Physics
Language:Romanian, English

Topic description:
Hyperspectral imaging (HSI) is an emerging technology in the field of medical imaging, offering detailed information about the structure and composition of biological tissues. This PhD thesis proposal focuses on the development and implementation of advanced algorithmic methods (such as spectral processing, noise reduction, classification, segmentation, etc.), which will be integrated into a dedicated software suite (such as the ROMA platform), with the aim of optimizing HSI analyses for non-invasive diagnosis. Dimensionality reduction techniques (PCA, LDA, MNF), noise removal methods (Lee filters, gamma correction, wavelet transform), as well as supervised and unsupervised classification methods (SAM, SVM, K-means, IsoData) will be applied. Special emphasis will be placed on evaluating the performance of these methods in the analysis of hyperspectral images derived from clinical cases, such as skin burns, tumor lesions, or tissue oxygenation assessment. Simulations and data processing will be carried out in MATLAB, Python, and specialized environments such as ENVI, using a high-performance workstation for processing large-scale images.

  References:
  1. B. Rasti et al., Noise Reduction in Hyperspectral Images: A Review, Remote Sens. (Basel) 10(3), 482 (2018), https://doi.org/10.3390/rs10030482
  2. A. Plaza et al., Recent advances in techniques for hyperspectral image processing, Remote Sensing of Environment (2009), https://doi.org/10.1016/j.rse.2007.07.028
  3. J.S. Lee, Digital image enhancement and noise filtering by use of local statistics, IEEE Transactions on Pattern Analysis and Machine Intelligence 2(2), 165-168 (1980), https://doi.org/10.1109/TPAMI.1980.4766994
  4. A. Bhargava et al., Hyperspectral Imaging and Its Applications: A Review, Heliyon 10(12), e33208 (2024), https://doi.org/10.1016/j.heliyon.2024.e33208

Topic:Risk Assessment of Ionizing Radiation Exposure in Nuclear Medicine and the Development of Monitoring and Regulatory Methods to Enhance Radiological Safety
Domain:Physics
Direction:Experimental and Computational Biophysics, Medical Physics
Language:Romanian, English

Topic description:
The assessment of risks arising from exposure to ionizing radiation in nuclear medicine procedures remains an area where comprehensive and standardized methodologies are still under development. This research topic aims, on one hand, to assess, identify, and gain a deeper understanding of the biological effects of radiation, depending on the type of procedure and the absorbed dose, and to study the risks faced by medical staff who handle open sources of ionizing radiation. On the other hand, it focuses on the development and implementation of modern and efficient methods for radiation dose monitoring, contributing to the improvement of standards and practices in the field. These improvements would enable more accurate exposure assessments and better risk management. In parallel, the topic includes an analysis of the existing legislative framework and the formulation of proposals for improving regulations, in line with international standards, in order to ensure a high level of nuclear safety in the medical sector.

  References:
  1. IAEA (2018) Radiation Protection and Safety in Medical Uses of Ionizing Radiation (IAEA Safety Standards Series No. SSG-46)
  2. IAEA (2022) Radiation Protection in Nuclear Medicine (Safety Reports Series No. 97)
  3. European Commission (2021) Radiation Protection No. 195: Radiation Protection in Nuclear Medicine
  4. ICRP Publication 146 (2020) Radiological Protection of People and the Environment in the Event of a Large Nuclear Accident
  5. Paulus, T. et al. (2023) Occupational radiation exposure in nuclear medicine: A systematic review of monitoring and protective strategies
  6. IAEA (2020) Occupational radiation protection during the Handling of Radiopharmaceuticals (IAEA TECDOC-1923)


Assoc. Prof. PhD Eng. Habil. Marcela-Elisabeta BĂRBÎNȚĂ-PĂTRAȘCU
Topic:Bio-inspired strategies for the valorization of natural products and plant waste in the ecological development/bio-design of valuable materials for biomedical and environmental applications
Domain:Physics
Direction:Experimental and Computational Biophysics, Medical Physics
Language:Romanian, English

Topic description:
Given the serious problems related to environmental pollution, it is necessary to adopt green strategies to develop valuable materials. To keep the Earth clean, we need to adopt eco-friendly strategies sustaining human and environmental health, by valorization of natural products and vegetable waste. Green Nanotechnology approaches can help to prevent future environmental problems and improve the general quality of life and human well-being. In addition, bioinspiration and biomimetics became new trends in Green Nanotechnology for the “green” development of multifunctional materials with potential applications in the biomedical field and in environmental protection.

  References:
  1. M. E. Barbinta-Patrascu, N. Badea, M. Bacalum, C. Ungureanu, I. R. Suica-Bunghez, S. M. Iordache, C. Pirvu, I. Zgura and V. A. Maraloiu, 3D hybrid structures based on biomimetic membranes and Caryophyllus aromaticus - "green" synthesized nano-silver with improved bioperformances, Mat. Sci. Eng. C, 101, 120-137, 2019, doi: 10.1016/j.msec.2019.03.069
  2. M. E. Barbinta-Patrascu, N. Badea, C. Ungureanu, S. M. Iordache, M. Constantin, V. Purcar, C. Pirvu and I. Rau, Eco-Biophysical Aspects on Nanosilver Bio-Generated from Citrus reticulata Peels, as Potential Bio-Pesticide for Controlling Pathogens and Wetland Plants in Aquatic Media, Journal of Nanomaterials, vol. 2017, Article ID 4214017, 12 pages, 2017, doi:10.1155/2017/4214017
  3. Barbinta-Patrascu, M.-E.; Badea, N.; Zgura, I. Novel Green Nanotechnologies Applied in Environmental Protection and Health. Materials 2022, 15, 5297, doi: 10.3390/ma15155297

Topic:Innovative strategies for obtaining multifunctional biocomposites based on allotropic forms of carbon and bio-entities (living systems and/or biomimetic systems), with biomedical potential
Domain:Physics
Direction:Experimental and Computational Biophysics, Medical Physics
Language:Romanian, English

Topic description:
Multifunctional biocomposites obtained by integration of allotropic forms of carbon (such as carbon nanotubes, graphenes and derivatives) into biological entities – is a new trend for bio-design new multifunctional materials. Biofunctionalization of carbon allotropes with biomimetic membranes or with living systems is an effective method of increasing their biocompatibility. Moreover, by decorating them with phyto-synthesized metallic nanoparticles, performant biocomposites can be obtained that can serve as bioplatforms in biomedical field.

  References:
  1. Barbinta-Patrascu, M.-E., Ungureanu, C., Iordache, S. M., Iordache, A. M., Bunghez, I. R., Ghiurea, M., Badea, N., Fierascu, R. C., Stamatin, I. Eco-designed biohybrids based on liposomes, mint–nanosilver and carbon nanotubes for antioxidant and antimicrobial coating, Mat. Sci. Eng. C, 39, 177-185, 2014, doi: 10.1016/j.msec.2014.02.038
  2. Petrovic, S.M.; Barbinta-Patrascu, M.-E.*, Organic and Biogenic Nanocarriers as Bio-Friendly Systems for Bioactive Compounds’ Delivery: State-of-the Art and Challenges. Materials 2023, 16, 7550, doi: 10.3390/ma16247550

Topic:Ecological approaches for the bio-design of lipid nanovectors (containing biomimetic membranes, biopolymers, plant extracts and/or phyto-nano-metals) for bio-applications: biophysical aspects
Domain:Physics
Direction:Experimental and Computational Biophysics, Medical Physics
Language:Romanian, English

Topic description:
Despite progress made by medicine, the cancer and antibiotic resistance remain the major problems facing humanity today. Design of innovative bio-nanoarchitectures with new properties and multiple applications is a scientific challenge. In this sense, the present topic aims to an original green bottom-up design (by combining self-assembly and biomimetics) of new types of bio-active lipid nanovectors (containing phytosomes, biopolymers, plant extracts and/or phyto-nano-metals). The phyto-derived metallic nanostructures can enhance the bioactivities (antiproliferative, antioxidant and antimicrobial) of the biohybrids. The phyto-vesicles include vegetal compounds with high bioactivity. The combination of biological matter with the inorganic one, gives rise to materials with improved properties and extended applicability in the biomedical field.

  References:
  1. M.-E. Barbinta-Patrascu, S. Antohe, HARNESSING CITRUS WASTE FOR BIOMEDICAL APPLICATIONS, Rom.Rep.Phys. 77(3), 604, 2025. doi: 10.59277/RomRepPhys.2025.77.604
  2. Barbinta-Patrascu, M.-E.; Nichita, C.; Enculescu, M.; Maraloiu, V.-A.; Bacalum, M.; Ungureanu, C.; Negrila, C.C.; Zgura, I. Bioactive Hybrids Containing Artificial Cell Membranes and Phyto-Gold–Silver Chloride Bio-Nanoparticles. Int. J. Mol. Sci. 2024, 25, 11929, doi: 10.3390/ijms252211929
  3. M.-E. Barbinta-Patrascu, N. Badea, C. Pirvu, M. Bacalum, C. Ungureanu, P.L. Nadejde, C. Ion, I. Rau, Multifunctional soft hybrid bio-platforms based on nano-silver and natural compounds, Mat. Sci. Eng. C, 69, 922-932, 2016. doi:10.1016/j.msec.2016.07.077

Topic:Eco-strategies for the development of biomaterials containing natural or synthetic platforms (derived from plants or insects) and phyto-derived particles, for biomedical or environmental applications
Domain:Physics
Direction:Experimental and Computational Biophysics, Medical Physics
Language:Romanian, English

Topic description:
This topic aims to design innovative materials by adopting eco-friendly strategies (bioinspiration, biomimetics, and self-assembly), and by using natural resources: biocompounds, natural biomaterials (such as vegetal tissues, spider silk), and recycling food and vegetal waste. Vegetal waste will be used for the nanogeneration of metallic/multi-metallic nanoparticles which will be deposed on various natural or synthetic materials for biomedical or environmental applications. As known, plants represent a rich source of natural bioactive compounds with high therapeutic potential (such as antimicrobial and antioxidant).

  References:
  1. M.-E. Barbinta-Patrascu, C. Nichita, B. Bita, S. Antohe, Biocomposite Materials Derived from Andropogon halepensis – Eco-design and Biophysical Evaluation, Materials 2024, 17(5), 1225, doi: 10.3390/ma17051225
  2. Barbinta-Patrascu, M.-E.; Bita, B.; Negut, I. From Nature to Technology: Exploring the Potential of Plant-Based Materials and Modified Plants in Biomimetics, Bionics, and Green Innovations. Biomimetics 2024, 9, 390, doi: 10.3390/biomimetics9070390
  3. Barbinta-Patrascu, M.-E.; Badea, N.; Zgura, I. Novel Green Nanotechnologies Applied in Environmental Protection and Health. Materials 2022, 15, 5297, doi: 10.3390/ma15155297




PhD Theses coordinated by Full Prof. Emeritus PhD Ştefan ANTOHE

  1. Contribuții la studiul unor materiale de interes pentru electronica transparentă și optoelectronică, Marina CIOBANU (MANICA), Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 27-Feb-2026, Abstract
  2. Strategii didactice pentru predarea unor noţiuni cu implicare directă în dezvoltarea curriculumului naţional la fizică, Corina SEBE ( RADU), Domain: Physics, Direction of study: Educational Physics, Public defense: 16-Dec-2025, Abstract
  3. Contribuții la studiul filmelor subțiri din compuși AII-BVI pentru aplicații în electronică și optoelectronică, Ana-Maria RĂDUȚĂ (FLOREA), Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 30-Sep-2025, Abstract
  4. Contribuții la studiul celulelor fotovoltaice pe bază de polimeri şi materiale compozite, Alina Irina CĂLUGĂR (RADU), Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 13-Nov-2024, Abstract
  5. Filme subțiri nanostructurate cu aplicații în dispozitive optoelectronice, Ana-Maria PANAITESCU, Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 31-Oct-2024, Abstract
  6. Study of new electronic and optoelectronic devices based on organic thin films, Gabriela-Iuliana PETRE (BĂIAȘU), Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 25-Oct-2024, Abstract
  7. Nanomateriale complexe fotoactive obținute prin tehnici laser pentru aplicații medioambientale, Raluca Mihaela TUDOR (IVAN), Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 5-Jul-2024, Abstract
  8. Studiul retenției de gaze în straturile metalice de interes pentru aplicațiile de fuziune nucleară, Flaviu-Florin BĂIAȘU, Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 28-Feb-2024, Abstract
  9. Contribuții la studiul materialelor și al celulelor fotovoltaice pe bază de filme subțiri din compuși AIIBVI pentru aplicații spațiale, Dumitru MANICA, Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 10-Aug-2023, Abstract
  10. Contribuţii la studiul metodelor de predare a surselor de energie neconvenţionale studiu de caz - efectul fotovoltaic, Luminița ANGHELESCU (DAN), Domain: Physics, Direction of study: Educational Physics, Public defense: 21-Dec-2022, Abstract
  11. Synthesis and experimental characterization of the carbon nanowalls (CNWS) in different configurations of graphene sheets in order to optimize their electrical and magnetotransport properties, Mijaela Acosta GENTOIU, Domain: Physics, Direction of study: Physics of Condensed Matter, Partnership: University of Sonora, Mexico, Public defense: 22-Nov-2019, Abstract
  12. Oxizi metalici pentru domeniul electronicii transparente, Nicoleta VASILE, Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 15-Nov-2019, Abstract
  13. Realizarea și analiza filmelor subțiri din oxid de grafenă redus utilizate în fabricarea unor supercapacitori, Cătălin Aurelian VANCEA, Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 7-Dec-2019, Abstract
  14. Studiul unor dispozitive pe bază de filme subţiri organice şi anorganice, Bogdan Ionuț BIȚĂ, Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 7-Nov-2018, Abstract
  15. Influența proprietăților dielectrice asupra forțelor de interfață ale sistemului nanostructurat proteină pe substrat metalic. Aplicații biomedicale, Oana-Andreea BRÎNCOVEANU (TUTUNARU), Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 23-Nov-2018, Abstract
  16. Formarea şi controlul domeniilor magnetice și/sau a pereților de domenii pentru diverse aplicații, Andrei Cristian KUNCSER, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 30-Sep-2017, Abstract
  17. Caracterizarea fizico-chimică şi ultrasonora a materialelor ceramice pentru aplicaţii biomedicale, Cristina-Liana POPA, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 27-Sep-2016, Abstract
  18. Contribuţii la studiul celulelor fotovoltaice pe bază de filme subţiri, Raluca Ioana EFTENE (CONSTANTINEANU), PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 30-Sep-2014
  19. Prepararea și caracterizarea straturilor subțiri semiconductoare și dielectrice obținute prin evaporare termica în vid și sputtering, Marian ION, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 4-Nov-2013
  20. Contribuţii la studiul proprietăţilor electrice şi optice ale straturilor subţiri policristaline şi nanocristaline din compuşi semiconductori, Ionel STAN, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 26-Sep-2013
  21. Spin dynamics and Ab initio simulations for disordered magnetic systems, Tudor Luca MITRAN, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 19-Sep-2013
  22. Investigation of point defects in binary compound semiconductors, Adela NICOLAEV, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 12-Sep-2013
  23. Semiconductori cu banda largă pentru aplicaţii în domeniul electronicii transparente, Cristina BEȘLEAGĂ (STAN), PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 20-Sep-2013
  24. Contribuţii la studiul celulelor fotovoltaice pe bază de straturi subțiri - studiu de caz în predarea fizicii în învățământul preuniversitar, Simona CRĂCIUN, PhD in "Exact Sciences", Domain: Physics, Direction of study: Educational Physics, Public defense: 18-Oct-2012
  25. Abordări moderne ale predării ştiinţelor naturii din perspectiva educaţiei constructiviste. Aplicaţii în studiul materialelor magnetorezistive, Florentina IOFCIU, PhD in "Exact Sciences", Domain: Physics, Direction of study: Educational Physics, Public defense: 14-Sep-2012
  26. Tehnici informaționale computerizate în studiul și predarea efectelor magneto-optice și aplicațiilor acestora în cazul filmelor subtiri feromagnetice, Cristina SMĂRĂNDOIU (KUNCSER), PhD in "Exact Sciences", Domain: Physics, Direction of study: Educational Physics, Public defense: 10-Sep-2012
  27. Contribuţii la studiul proprietăţilor fizice ale interfeţei siliciu poros/mediu biologic. Aplicaţii biomedicale, Marinela BRABIE (DIEACONU), PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 7-Sep-2012
  28. Vedere instituţională europeană asupra realizării competenţelor cognitive complexe în ştiinţă. studiu de caz: competenţe cognitive prin experimente de electricitate, Mihail DAFINEI, PhD in "Exact Sciences", Domain: Physics, Direction of study: Educational Physics, Public defense: 7-Sep-2012
  29. Caracterizarea structurală și morfologică a straturilor subţiri prin tehnici XRD, AFM şi SEM, Fiz. Daniel TENCIU, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 12-Apr-2012
  30. Contribuţii la dezvoltarea unor structuri pentru conversia energiei solare în energie electrică prin efect fotovoltaic, Fiz. Mihai RADU, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 27-Oct-2011
  31. Contribuţii la studiul metodelor de predarea surselor de energie neconvenţionale bazate pe efectul fotovoltaic, Fiz. Nicoleta BĂNICĂ (DINA), PhD in "Exact Sciences", Domain: Physics, Direction of study: Educational Physics, Public defense: 26-Sep-2011
  32. Metode de preparare şi caracterizare a unor nanostructuri semiconductoare cu aplicaţii în electronică şi optoelectronică, Fiz. Adrian RADU, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 21-Sep-2011
  33. Spectrul energetic şi transport de sarcină în sisteme q-1d din semiconductori de tip AIIIBV, Fiz. Camelia VIȘAN, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 21-Sep-2011
  34. Aplicaţii ale spectroscopiei IR şi RAMAN în studiul materialelor, Fiz. Alexandru TODERAŞ, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 19-Sep-2011
  35. Prepararea şi caracterizarea unor materiale noi cu conductivitate protonică pentru aplicaţii în pilele de combustie, Fiz. Adriana-Elena ANDRONIE (BĂLAN), PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 19-Sep-2011
  36. Contribuţii la studiul celulelor fotovoltaice pe bază de straturi subțiri nanostructurate din semiconductori organici și anorganici, Fiz. Sorina IFTIMIE, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 1-Sep-2011
  37. Contribuţii la studiul proprietăţilor electrice şi optice ale straturilor subţiri semiconductoare, Ing. Fiz. Vlad COVLEA, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 25-Aug-2011
  38. Contribuţii la realizarea şi caracterizarea celulelor fotovoltaice pentru aplicaţii spaţiale, Ing. Fiz. Oana-Lavinia PORUMB, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 28-Jul-2011
  39. Contribuţii la studiul proprietăţilor structurale, electrice şi optice ale straturilor subţiri nanostructurate folosite la realizarea dispozitivelor electronice şi opto-electronice, Ing. Fiz. Mihaela FILIPESCU, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 26-Jul-2011
  40. Fizica în context inter şi transdisciplinar, Carmen Gabriela CODREANU (BOSTAN), PhD in "Exact Sciences", Domain: Physics, Direction of study: Educational Physics, Public defense: 13-Apr-2011
  41. Contribuţii la studiul unor materiale organice și anorganice nanaostructurate pentru dispozitive optoelectronice pe suport flexibil, Ing. Fiz. Mădălin Ion RUSU, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 16-Mar-2011
  42. Inducerea de defecte în diverse materiale (AII-BVI, ceramici nucleare) prin implantare ionică și caracterizarea proprietăţilor lor fizice, Fiz. Gihan VELIŞA, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 1-Feb-2011
  43. Proprietati electrice și optice ale semiconductorilor organici, Ing. Fiz. Marcela SOCOL, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 6-Dec-2010
  44. 10.  Proprietăţi electrice şi fotoelectrice ale structurilor de diodă bazate pe straturi subţiri semiconductoare”, doctor în Stiinţe Exacte”, domeniul Fizică Sustinere publica in 26 Octombrie 2010, , Fiz. Rosemary BĂZĂVAN, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 26-Oct-2010
  45. Contribuţii la studiul proprietăţilor electrice şi optice ale structurilor de diodă pe bază de semiconductori organici şi anorganici, Ing. Fiz. Marina Larisa MĂGHERUŞAN, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 27-Jul-2010
  46. Studiul efectului radiaţiilor ionizante asupra proprietăţilor electrice şi optice ale straturilor subţiri semiconductoare” “doctor în Stiinţe Exacte”, domeniul Fizică Sustinere publica in 28 Mai 2010, , Ing. Fiz. Veta GHENESCU, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 28-May-2010
  47. Contribuţii la studiul dispozitivelor electronice si optoelectronice pe baza de semiconductori organici si anorganici, Ing. Fiz. Cezar TĂZLĂOANU, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 16-Apr-2010
  48. Contribuţii la studiul metodelor moderne de predare învăţare evaluare la disciplina fizică” “Doctor în ştiiţe exacte” domeniul Fizică. Sustinerea publica in 5 Martie 2010, , Fiz. Delia Constanţa DAVIDESCU, PhD in "Exact Sciences", Domain: Physics, Direction of study: Educational Physics, Public defense: 5-Mar-2010
  49. Contribuţii la studiul influenţei radiaţiilor ionizante asupra proprietăţilor structurale şi electrice ale compuşilor A2B6, Ing. Fiz. Marian Traian GHENESCU, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 25-Nov-2009
  50. Modelarea asistată de calculator a proprietăţilor structurale şi de transport ale siliciului poros” , “doctor în Stiinţe Exacte”, domeniul Fizică, 21.08.2009, , Fiz. Adrian A. DAFINEI, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 21-Aug-2009
  51. Contribuţii la studiul proprietăţilor electrice şi magnetooptice ale straturilor subţiri semiconductoarex, Ing. Dan BĂZĂVAN, PhD in "Exact Sciences", Domain: Physics, Direction of study: Physics of Condensed Matter, Public defense: 14-Aug-2009


PhD Theses coordinated by Full Prof. PhD. Daniela DRAGOMAN



Research & Development Center for Materials and Electronic & Optoelectronic Devices

Faculty of Physics

University of Bucharest


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