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Dr. Besleaga Stan Cristina

Scientific Researcher

Laboratory of Multifunctional Materials and Structures

cristina[DOT]besleaga[AT]infim[DOT]ro
Keywords: micro-electronics, opto-electronics, solar cells,

Education

Faculty of Physics, University of Bucharest, Romania

PhD thesis: "Wide band semiconductors with applications in transparent electronics" (2013)

Positions

Scientific researcher rank II

Awards

▪ In September 2014, the applicant won the best poster presentation award at the "10th International Conference on Physics of Advanced Materials" for the work entitled "Advanced characterization of amorphous oxide semiconductor thin films by X-ray reflectivity and thermally stimulated current spectroscopy".

▪ In 2016, the „Excelence” prize from ProInvent Exhibition of Inventions – XIV edition

▪ In  2018, „Ștefan Procopiu” prize from Romanian Academy (https://acad.ro/premiileAR/liste/2016.pdf);

▪ In 2019, „Young Researchers in Science and Engineering” offered by Dr. Rada Mihalcea and  Cluj-Napoca City Hall  (https://primariaclujnapoca.ro/evenimente/tinerii-cercetatori-premiul-pentru-stiinta-si-inginerie/). 

Research interests

  • Micro-electronics
  • Transport phenomena in semiconductors
  • Halide perovskite materials and its applications

Expertize

I work in the field of electronic and optoelectronic devices fabrication since 2008 and was member in the research team of more than 16 national and international scientific projects.

I have expertise in:

-       Synthesis of thin films by magnetron sputtering;

-       Characterization of thin film structures: structural (X-ray diffraction, X-ray reflectometry), morphological (atomic force microscope), optical (UV-Vis-IR spectroscopy), and electrical (resistivity/conductivity, Hall effect, dielectric spectroscopy);

-        Fabrication of electronic and optoelectronic devices in clean room conditions and their functional characterization: photovoltaic cells, metal-insulator-metal (MIM) structures, metal-insulator-semiconductor (MIS) structures, and thin film field effect transistors (TFT).

Demonstrated leadership capacities of research project coordination and budget administration; Project leader of:

▪ PN-II-RU-TE-2014-4-1122 „Field effect transistors based on new transparent heterostructures synthesized at low temperatures” project

▪ PN-III-P1-1.1-PD-2016-1546 “Lead-free halide perovskite photo-transistors as first step towards hybrid lead-free OLETs for next generation displays” project

▪ PN-III-P1-1.1-TE-2019-0688 “ High quality HZO and AlN films grown by industrially compatible techniques for next generation electronic and sensing devices”

 

Patents

▪ patent  BNP No.  RO132504-A2 /A00747/01-01-2016;  “Piroelectric detection element  for work at high temperatures”

▪ patent BND No.  A00427/15.07.2019; “ Antena planara de microunde cu geometrie noua a suprafetei radiante”

▪ patent BNA No.  A00364/2018; “ Strat mezoporos pentru celule solare pe bază de perovskiți și metoda de obținere” 

▪ patent BNP No.  A00439/2018; “ Procedeu de obținere a unui fotodetector pe bază de matrici de nanofire miez-coajă de tip oxid de cupru și oxid de zinc preparate pe electrozi metalici interdigitați”

▪ patent BNA No.  A00195/2017; “ Printer for successive deposition of ultra-thin layers of different physical-chemical properties”;

▪ patent BND No.  A00633/12.10.2020, “ Procedeu de realizare a unui implant endoosos cu activitate antimicrobiana extinsa, conditionata ca intensitate si durata prin grosimea stratului bioresorbabil de acoperire din sticla fosfatica cosubstituita”;

▪ patent BND No.  A00632/12.10.2020, “ Foto-tranzistor in strat subtire, pe baza de perovskite halogenati fara plumb, avand dioda ionica in rol de poarta si metoda de obtinere”;

▪ patent US No. US 10.902.914 B2/ 01.26.2021, “Programmable resistive memory element and a method of making the same”.

 

Projects

1. High quality HZO and AlN films grown by industrially compatible techniques for next generation electronic and sensing devices
Project Type: , Start Date: 2020-09-13 End Date: 2022-09-14
2. Lead-free halide perovskite photo-transistors as first step towards hybrid lead-free OLETs for next generation displays
Project Type: PD, Start Date: 2018-05-02 End Date: 2020-04-30
3. Field effect transistors based on new transparent heterostructures synthesized at low temperatures (TRANSTEC)
Project Type: TE, Start Date: 2015-10-01 End Date: 2017-09-30

Publications

1. Self-connected CuO-ZnO radial core-shell heterojunction nanowire arrays grown on interdigitated electrodes for visible-light photodetectors
Authors: Costas, A; Florica, C; Preda, N; Besleaga, C; Kuncser, A; Enculescu, I

Published: APR 27 2022, SCIENTIFIC REPORTS, 12, 6834, DOI: 10.1038/s41598-022-10879-5

2. Enhancing stability of hybrid perovskite solar cells by imidazolium incorporation
Authors: Tomulescu, AG; Leonat, LN; Neatu, F; Stancu, V; Toma, V; Derbali, S; Neatu, S; Rostas, AM; Besleaga, C; Patru, R; Pintilie, I; Florea, M

Published: AUG 1 2021, SOLAR ENERGY MATERIALS AND SOLAR CELLS, 227, DOI: 10.1016/j.solmat.2021.111096

3. The Behavior of Gold Metallized AlN/Si- and AlN/Glass-Based SAW Structures as Temperature Sensors
Authors: Nicoloiu, A; Stan, GE; Nastase, C; Boldeiu, G; Besleaga, C; Dinescu, A; Muller, A

Published: MAY 2021, IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 68, 1948, DOI: 10.1109/TUFFC.2020.3037789

4. Bistability of the BiOi complex and its implications on evaluating the "acceptor removal"process in p-type silicon
Authors: Besleaga, C; Kuncser, A; Nitescu, A; Kramberger, G; Moll, M; Pintilie, I

Published: NOV 21 2021, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1017, DOI: 10.1016/j.nima.2021.165809

5. UAV identification system based on memristor physical unclonable functions
Authors: Ionescu, O; Besleaga, C; Dumitru, V; Pricop, E

Published: 2020, PROCEEDINGS OF THE 2020 12TH INTERNATIONAL CONFERENCE ON ELECTRONICS, COMPUTERS AND ARTIFICIAL INTELLIGENCE (ECAI-2020), DOI:

6. Influence of doping the inorganic cation with Eu or Sb on the properties of perovskite films
Authors: Stancu, V; Leonat, LN; Tomulescu, AG; Derbali, S; Pintilie, L; Besleaga, C; Galca, AC; Neatu, F; Neatu, T; Florea, M; Pintilie, I

Published: JUL 2020, PHYSICA SCRIPTA, 95, DOI: 10.1088/1402-4896/ab90be

7. Reticulated Mesoporous TiO2 Scaffold, Fabricated by Spray Coating, for Large-Area Perovskite Solar Cells
Authors: Tomulescu, AG; Stancu, V; Besleaga, C; Enculescu, M; Nemnes, GA; Florea, M; Dumitru, V; Pintilie, L; Pintilie, I; Leonat, L

Published: JAN 2020, ENERGY TECHNOLOGY, 8, DOI: 10.1002/ente.201900922

8. Analog IGZO Memristor With Extended Capabilities
Authors: Dumitru, V; Besleaga, C; Ionescu, ON

Published: 2020, IEEE JOURNAL OF THE ELECTRON DEVICES SOCIETY, 8, 700, DOI: 10.1109/JEDS.2020.3006000

9. The Beneficial Mechanical and Biological Outcomes of Thin Copper-Gallium Doped Silica-Rich Bio-Active Glass Implant-Type Coatings
Authors: Stan, GE; Tite, T; Popa, AC; Chirica, IM; Negrila, CC; Besleaga, C; Zgura, I; Sergentu, AC; Popescu-Pelin, G; Cristea, D; Ionescu, LE; Necsulescu, M; Fernandes, HR; Ferreira, JMF

Published: NOV 2020, COATINGS, 10, DOI: 10.3390/coatings10111119

10. Ferroelectric Field Effect Transistors Based on PZT and IGZO
Authors: Besleaga, C; Radu, R; Balescu, LM; Stancu, V; Costas, A; Dumitru, V; Stan, G; Pintilie, L

Published: 2019, IEEE JOURNAL OF THE ELECTRON DEVICES SOCIETY, 7, 275, DOI: 10.1109/JEDS.2019.2895367

11. The hysteresis-free behavior of perovskite solar cells from the perspective of the measurement conditions
Authors: Nemnes, GA; Besleaga, C; Tomulescu, AG; Leonat, LN; Stancu, V; Florea, M; Manolescu, A; Pintilie, I

Published: MAY 14 2019, JOURNAL OF MATERIALS CHEMISTRY C, 7, 5274, DOI: 10.1039/c8tc05999c

12. New bio-active, antimicrobial and adherent coatings of nanostructured carbon double-reinforced with silver and silicon by Matrix-Assisted Pulsed Laser Evaporation for medical applications
Authors: Duta, L; Ristoscu, C; Stan, GE; Husanu, MA; Besleaga, C; Chifiriuc, MC; Lazar, V; Bleotu, C; Miculescu, F; Mihailescu, N; Axente, E; Badiceanu, M; Bociaga, D; Mihailescu, IN

Published: MAY 31 2018, APPLIED SURFACE SCIENCE, 441, 883, DOI: 10.1016/j.apsusc.2018.02.047

13. The Influence of the Relaxation Time on the Dynamic Hysteresis in Perovskite Solar Cells
Authors: Palici, A; Nemnes, GA; Besleaga, C; Pintilie, L; Anghel, DV; Pintilie, I; Manolescu, A

Published: 2018, MATHEMATICAL MODELING AND COMPUTATIONAL PHYSICS 2017 (MMCP 2017), 173, DOI: 10.1051/epjconf/201817303017

14. How measurement protocols influence the dynamic J-V characteristics of perovskite solar cells: Theory and experiment
Authors: Nemnes, GA; Besleaga, C; Tomulescu, AG; Palici, A; Pintilie, L; Manolescu, A; Pintilie, I

Published: OCT 2018, SOLAR ENERGY, 173, 983, DOI: 10.1016/j.solener.2018.08.033

15. Enhanced near-infrared response of a silicon solar cell by using an up-conversion phosphor film of Yb/Er - co-doped CeO2
Authors: Grigoroscuta, M; Secu, M; Trupina, L; Enculescu, M; Besleaga, C; Pintilie, I; Badica, P

Published: SEP 1 2018, SOLAR ENERGY, 171, 46, DOI: 10.1016/j.solener.2018.06.057

16. Normal and Inverted Hysteresis in Perovskite Solar Cells
Authors: Nemnes, GA; Besleaga, C; Stancu, V; Dogaru, DE; Leonat, LN; Pintilie, L; Torfason, K; Ilkov, M; Manolescu, A; Pintilie, I

Published: JUN 1 2017, JOURNAL OF PHYSICAL CHEMISTRY C, 121, 11214, DOI: 10.1021/acs.jpcc.7b04248

17. Dynamic electrical behavior of halide perovskite based solar cells
Authors: Nemnes, GA; Besleaga, C; Tomulescu, AG; Pintilie, I; Pintilie, L; Torfason, K; Manolescu, A

Published: JAN 2017, SOLAR ENERGY MATERIALS AND SOLAR CELLS, 159, 203, DOI: 10.1016/j.solmat.2016.09.012

18. Characterization of PLD grown WO3 thin films for gas sensing
Authors: Boyadjiev, SI; Georgieva, V; Stefan, N; Stan, GE; Mihailescu, N; Visan, A; Mihailescu, IN; Besleaga, C; Szilagyi, IM

Published: SEP 30 2017, APPLIED SURFACE SCIENCE, 417, 223, DOI: 10.1016/j.apsusc.2017.03.212

19. Characterization of MAPLE deposited WO3 thin films for electrochromic applications
Authors: Boyadjiev, SI; Stefan, N; Szilagyi, IM; Mihailescu, N; Visan, A; Mihailescu, IN; Stan, GE; Besleaga, C; Iliev, MT; Gesheva, KA

Published: 2017, INERA WORKSHOP 2016: MEMBRANE AND LIQUID CRYSTAL NANOSTRUCTURES (MELINA 2016), 780, DOI: 10.1088/1742-6596/780/1/012013

20. Comparative physical, chemical and biological assessment of simple and titanium-doped ovine dentine-derived hydroxyapatite coatings fabricated by pulsed laser deposition
Authors: Duta, L; Mihailescu, N; Popescu, AC; Luculescu, CR; Mihailescu, IN; Cetin, G; Gunduz, O; Oktar, FN; Popa, AC; Kuncser, A; Besleaga, C; Stan, GE

Published: AUG 15 2017, APPLIED SURFACE SCIENCE, 413, 139, DOI: 10.1016/j.apsusc.2017.04.025

21. Mechanical, Corrosion and Biological Properties of Room-Temperature Sputtered Aluminum Nitride Films with Dissimilar Nanostructure
Authors: Besleaga, C; Dumitru, V; Trinca, LM; Popa, AC; Negrila, CC; Kolodziejczyk, L; Luculescu, CR; Ionescu, GC; Ripeanu, RG; Vladescu, A; Stan, GE

Published: NOV 2017, NANOMATERIALS, 7, DOI: 10.3390/nano7110394

22. TEMPERATURE INFLUENCE ON THE CAPACITANCE-VOLTAGE HYSTERESIS OF TRANSPARENT a-IGZO/PZT/FTO MFS-HETEROSTRUCTURE
Authors: Trinca, LM; Besleaga, C; Stancu, V; Radu, R; Iuga, A; Boni, AG; Galca, AC; Pintilie, L

Published: 2017, ROMANIAN REPORTS IN PHYSICS, 69, DOI:

23. Submicrometer Hollow Bioglass Cones Deposited by Radio Frequency Magnetron Sputtering: Formation Mechanism, Properties, and Prospective Biomedical Applications
Authors: Popa, AC; Stan, GE; Besleaga, C; Ion, L; Maraloiu, VA; Tulyaganov, DU; Ferreira, JMF

Published: FEB 24 2016, ACS APPLIED MATERIALS & INTERFACES, 8, 4367, DOI: 10.1021/acsami.6b00606

24. Fabrication of periodical surface structures by picosecond laser irradiation of carbon thin films: transformation of amorphous carbon in nanographite
Authors: Popescu, C; Dorcioman, G; Bita, B; Besleaga, C; Zgura, I; Himcinschi, C; Popescu, AC

Published: DEC 30 2016, APPLIED SURFACE SCIENCE, 390, 243, DOI: 10.1016/j.apsusc.2016.08.029

25. Fabrication of antimicrobial silver-doped carbon structures by combinatorial pulsed laser deposition
Authors: Mihailescu, IN; Bociaga, D; Socol, G; Stan, GE; Chifiriuc, MC; Bleotu, C; Husanu, MA; Popescu-Pelin, G; Duta, L; Luculescu, CR; Negut, I; Hapenciuc, C; Besleaga, C; Zgura, I; Miculescu, F

Published: DEC 30 2016, INTERNATIONAL JOURNAL OF PHARMACEUTICS, 515, 606, DOI: 10.1016/j.ijpharm.2016.10.041

26. Combinatorial MAPLE deposition of antimicrobial orthopedic maps fabricated from chitosan and biomimetic apatite powders
Authors: Visan, A; Stan, GE; Ristoscu, C; Popescu-Pelin, G; Sopronyi, M; Besleaga, C; Luculescu, C; Chifiriuc, MC; Hussien, MD; Marsan, O; Kergourlay, E; Grossin, D; Brouillet, F; Mihailescu, IN

Published: SEP 10 2016, INTERNATIONAL JOURNAL OF PHARMACEUTICS, 511, 515, DOI: 10.1016/j.ijpharm.2016.07.015

27. Iodine Migration and Degradation of Perovskite Solar Cells Enhanced by Metallic Electrodes
Authors: Besleaga, C; Abramiuc, LE; Stancu, V; Tomulescu, AG; Sima, M; Trinca, L; Plugaru, N; Pintilie, L; Nemnes, GA; Iliescu, M; Svavarsson, HG; Manolescu, A; Pintilie, I

Published: DEC 15 2016, JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 7, 5175, DOI: 10.1021/acs.jpclett.6b02375

28. Transparent field-effect transistors based on AlN-gate dielectric and IGZO-channel semiconductor
Authors: Besleaga, C; Stan, GE; Pintilie, I; Barquinha, P; Fortunato, E; Martins, R

Published: AUG 30 2016, APPLIED SURFACE SCIENCE, 379, 276, DOI: 10.1016/j.apsusc.2016.04.083

29. AZO THIN FILMS SYNTHESIZED BY RF-MAGNETRON SPUTTERING: THE ROLE OF DEPOSITION POWER
Authors: Besleaga, C; Ion, L; Antohe, S

Published: 2014, ROMANIAN REPORTS IN PHYSICS, 66, 1001, DOI:

30. Physical properties of AlxIn1-xN thin film alloys sputtered at low temperature
Authors: Besleaga, C; Galca, AC; Miclea, CF; Mercioniu, I; Enculescu, M; Stan, GE; Mateescu, AO; Dumitru, V; Costea, S

Published: OCT 21 2014, JOURNAL OF APPLIED PHYSICS, 116, DOI: 10.1063/1.4898565

31. InN Based Water Condensation Sensors on Glass and Flexible Plastic Substrates
Authors: Dumitru, V; Costea, S; Brezeanu, M; Stan, GE; Besleaga, C; Galca, AC; Ionescu, G; Ionescu, O

Published: DEC 2013, SENSORS, 13, 16949, DOI: 10.3390/s131216940

32. Double layer structure of ZnO thin films deposited by RF-magnetron sputtering on glass substrate
Authors: Besleaga, C; Stan, GE; Galca, AC; Ion, L; Antohe, S

Published: SEP 1 2012, APPLIED SURFACE SCIENCE, 258, 8824, DOI: 10.1016/j.apsusc.2012.05.097

33. Transparent indium zinc oxide thin films used in photovoltaic cells based on polymer blends
Authors: Besleaga, C; Ion, L; Ghenescu, V; Socol, G; Radu, A; Arghir, I; Florica, C; Antohe, S

Published: SEP 1 2012, THIN SOLID FILMS, 520, 6806, DOI: 10.1016/j.tsf.2012.07.030

34. High quality amorphous indium zinc oxide thin films synthesized by pulsed laser deposition
Authors: Socol, G; Craciun, D; Mihailescu, IN; Stefan, N; Besleaga, C; Ion, L; Antohe, S; Kim, KW; Norton, D; Pearton, SJ; Galca, AC; Craciun, V

Published: DEC 1 2011, THIN SOLID FILMS, 520, 1277, DOI: 10.1016/j.tsf.2011.04.196

35. The Influence of Magnetron Sputtering Conditions on the Physical Properties of (001) Oriented Nanostructured ZnO Thin Films
Authors: Simon, S; Besleaga, C; Stan, GE; Ion, L; Arghir, I; Antohe, S

Published: 2011, PHYSICS CONFERENCE (TIM-10), 1387, DOI: 10.1063/1.3647074

36. EFFECTS OF PROTON IRRADIATION ON THE SPECTRAL PERFORMANCE OF PHOTOVOLTAIC CELLS BASED ON CdS/CdTe THIN FILMS
Authors: Ion, L; Enculescu, I; Iftimie, S; Ghenescu, V; Tazlaoanu, C; Besleaga, C; Mitran, TL; Antohe, VA; Gugiu, MM; Antohe, S

Published: AUG 2010, CHALCOGENIDE LETTERS, 7, 530, DOI:

37. Pyramidal morphology of InN thin films deposited by reactive RF-magnetron sputtering
Authors: Zoita, NC; Besleaga, C; Braic, L; Mitran, T; Vlaicu, M

Published: DEC 2008, OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 2, 797, DOI:

38. InN thin films deposited on flexible substrates by reactive RF-magnetron sputtering
Authors: Zoita, NC; Besleaga, C; Braic, L; Mitran, T; Grigorescu, C; Nedelcu, L

Published: NOV 2008, OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 2, 720, DOI:

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