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									                  UNIVERSITY OF BUCHAREST,
                           FACULTY OF PHYSICS,
 RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS
  AND ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO)


                              Ştefan ANTOHE Ph.D

                Director of MDEO Research Centre

  University of Bucharest, Faculty of Physics, P.O.Box:MG-11,
       Bucharest-Magurele, 077125 ROMANIA, E-mail:
                 santohe@solid.fizica.unibuc.ro

                 Telefon: +40214574418/4574419, fax: +40214574418/4574521

University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                   Dr. Stefan ANTOHE
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.

        University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
        MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                           Dr. Stefan ANTOHE
                                   RESEARCH AREA
                        at the
Research Development Centre for ,,Materials and Electronics
               &Optoelectronics Devices”
                 A2B6 thin films – production and characterization
                           Structural properties
                           Morphological properties
                           Electrical properties
                           Optical properties
                Photovoltaic Cells Based on Organic Thin Films &
                      Hybrid Inorganic/Organic Structures
                Defects in semiconductors
                 Nanowires based on A2B6 semiconductors
                 Electronic devices based on A2B6 nanowires
                 Numerical simulations in solid state physics
                           Numerical modeling at nano-scale
                           Electrical transport

   University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
   MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                      Dr. Stefan ANTOHE
For the preparation of the thin films
there are three      equipments 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.
The thickness of the grown thin films is
done in-situ with a Quartz resonator
based system.
 University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
 MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                    Dr. Stefan ANTOHE
                           THIN FILMS PRODUCTIONS



Facilities for producing thin films by:
                   thermal evaporation
                   electrochemical methods



                                                                    Equipments for thermal
                                                                vacuum evaporation operating
                                                                   in 10-6 – 10-5 Torr range




   University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
   MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                      Dr. Stefan ANTOHE
Deposition of the Organic Thin Films on Flexible
and Transparent Substrates




  University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
  MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                     Dr. Stefan ANTOHE
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.

 University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
 MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                    Dr. Stefan ANTOHE
             APPLICATIONS BASED ON NANOWIRES

Facilities for producing metallic and semiconductor nanowires:
             Clean room – ISO 6 class
             Electrochemical deposition based
              on template approaches




   University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
   MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                      Dr. Stefan ANTOHE
Electrochemical deposition based
      on template approaches




 University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
 MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                    Dr. Stefan ANTOHE
Preparation and characterization
of CdTe nanowires
Physical properties of CdTe determining the increased
  scientific interest in the last decades

 Band gap of 1.4 eV properly for the base absorber
  layer in a solar cell;
 Large optical absorption coefficient;
 Good chemical stability;
 Potential candidates for CdS/CdTe and hybrid
  organic/inorganic solar cells.

    University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
    MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                       Dr. Stefan ANTOHE
 Preparation of CdTe nanowires
                                                                                             Acidic deposition bath:
                 0.10

                 0.05
                                                                                              1 M CdSO4,
                 0.00                                                                         0.3 mM TeO2
                 -0.05                                                                       at a pH of 1.6 adjusted with
  Current (mA)




                 -0.10                                                                        H2SO4)
                                                                                              HTeO2+ + 3H++ 4e-  Te +2H2O
                                                               sweep1
                 -0.15
                                                               sweep2                    
                                                                                              Cd2+ + Te + 2e-  CdTe
                 -0.20                                         sweep3
                                                                                         
                 -0.25

                 -0.30
                                                                                         •    108 pores/cm2
                     -700   -600   -500   -400   -300   -200   -100     0   100
                                            Potential (mV)
                                                                                         •    80 nm pore diameter
                                                                                         •    deposition at 74C

 Polarisation curves for CdTe nanowires deposition. Sweep rate was 5 mV/s.
The peak at 500 mV corresponds to the potential where CdTe is deposited. The
shift towards more positive potential at the second and third sweep, is most
probably due to the fact that the deposition is further favorised by the presence in
the substrate of Te atoms.

                   University of Bucharest – Faculty of Physics                      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
                   MDEO Research Center                                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                                                      Dr. Stefan ANTOHE
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, /2 measurements and
structural phase identification

  University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
  MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                     Dr. Stefan ANTOHE
                   STRUCTURAL CHARACTERIZATION
XRD - High Resolution X-ray Diffractometer Bruker D8 Discover for
thin film application, equipped with four motorized axes stage




Typical applications:
                   XR Reflectometry
                   Rocking measurements
                   /2 measurements
                   structural phase identification

 University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
 MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                    Dr. Stefan ANTOHE
Morphology of prepared organic and inorganic
thin films or nanostructured layers is assessed ex-
situ using our AFM - Atomic Force Microscope
able to operates in the following modes: STM, C-
AFM, M-AFM, and the 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.

    University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
    MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                       Dr. Stefan ANTOHE
             TOOLS FOR LITHOGRAPHY AND
            MORPHOLOGICAL INVESTIGATIONS



                                               SEM - Scanning Electron Microscope
                                               TESCAN VEGA XM characteristics:
                                                     Dual mode operation
                                                     High and medium vacuum
                                                     equipped with 5 axes stage
                                                     fully monitorized
                                                     3 nm imaging resolution
                                                     equipped with a module for
                                                     nanolithography
                                                     both conductive and dielectric
                                                    sample can be analyzed




University of Bucharest – Faculty of Physics        RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
MDEO Research Center                             ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                     Dr. Stefan ANTOHE
MORPHOLOGICAL INVESTIGATIONS of
CdTe Nanowires Arrays




 University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
 MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                    Dr. Stefan ANTOHE
                                                                                        • CdTe nw array
                                                                                        • 108 wires/cm2
                                                                                        • 300                nm
                                                                                          diameter
                                                                                        • Voltage:         -500
                                                                                          mV;
                                                                                        • Composition:4
                                                                                          9% Cd; 51%Te




SEM micrographs of an array of CdTe wires (108 wires/cm2,
300 nm diameter) deposited at -500 mV vs. SCE and the result of Energy
Dispersive X-ray (EDX) analysis.

    University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
    MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                       Dr. Stefan ANTOHE
TOOLS FOR LITHOGRAPHY AND MORPHOLOGICAL
              INVESTIGATIONS




AFM - Atomic Force Microscope
operates in the following modes:
           STM
           C-AFM
           M-AFM
           Capable of lithography

 University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
 MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                    Dr. Stefan ANTOHE
Morphological investigations S
of P3HT:PCBM (1:1) thin films




 University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
 MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                    Dr. Stefan ANTOHE
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.



 University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
 MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                    Dr. Stefan ANTOHE
                    ELECTRICAL CHARACTERIZATIONS

Determination:
       Resistivity and Hall Effect measurements as function on temperature
       Thermostimulated Current (TSC)
       Space Charge Limited Current (SCLC)
        Thermoelectrical effect
                                                           Solar Simulator - Equipped with an
                                                           Hg-Xe high pressure lamp with highly
                                                           stabilized output and AM 1.5 filters




     University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
     MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                        Dr. Stefan ANTOHE
                 ELECTRICAL CHARACTERIZATIONS
Helium closed cycle cryostat
           sample in vacuum
           8 – 325 K range
           optical access to the samples through 4 quartz windows
           10 pin electrical feedthrough for sample contacting
           electrical and optical material characterization
Helium closed cycle cryostat for galvanomagnetic applications
                   Hall effect and magnetoresistance

                                                 2.6 – 325 K range

                                                 sample in vacuum




  University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
  MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                     Dr. Stefan ANTOHE
                                                                                                                           8
                                                                                                                      1.4x10
               -7
         8.0x10                                                                                                                                  9x10
                                                                                                                                                        7




                                                                                                                                                        7
                                                                                                                           8                     8x10
                                                                                                                      1.2x10
                                                                                                                                                        7
               -7                                                                                                                                7x10
         4.0x10
                                                                                                                                                        7
                                                                                                                                                 6x10
                                                                                                                           8
                                                                                                                      1.0x10                     5x10
                                                                                                                                                        7



              0.0                                                                                300 K                                                  7
                                                                                                                                                 4x10

                                                                                                 270 K                     7
                                                                                                                      8.0x10                            7
 I (A)




                                                                                                                                                 3x10




                                                                                                              R ()
               -7
                                                                                                 250 K
         -4.0x10                                                                                                                                 2x10
                                                                                                                                                        7



                                      -8
                                                                                                 240 K
                                1.0x10                                                                                                                      3          4          5          6         7
                                                                                                 200 K                     7
                                                                                                                      6.0x10
               -7
         -8.0x10                                                                                 100 K
                                     0.0
                                                                                                 130 K
                                                                                                                           7
                                                                         300 K                   100 K                4.0x10
               -6
         -1.2x10                      -8
                                -1.0x10                                                          80 K
                                            -1.0    -0.5    0.0    0.5           1.0
                                                                                                 50 K                      7
                                                                                                                      2.0x10
                    -20   -15             -10      -5        0           5             10   15     20                          100   120   140   160            180        200   220   240       260   280
                                                           U (V)                                                                                                      T (K)

a) I-V characteristics recorded for a CdTe multisegment wire array (300 nm diameter, 106
wires/cm2). The sequence of the segments is specified in Table I (CT8 sample). b) Temperature
dependence of the electrical resistance of the sample, measured at applied voltages in the range
where I-V curves were linear.                                                  E 
Multisegment wires (300 nm diameter, 10   6 pores/cm2):              R  R0 exp ac 
                                                                               k T 
- CdTe, deposited at -680 mV, 700 nm long;                                      B 
                                                        The resistance is thermally activated,
- CdTe stoichiometric, deposited at -510 mV;            with an activation energy of 0.03 eV
- Cd, deposited at -680 mV, 700 nm long.                in the high temperature range

                    University of Bucharest – Faculty of Physics                                            RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
                    MDEO Research Center                                                                 ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                                                                             Dr. Stefan ANTOHE
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 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) and Power Conversion Efficiency (η) 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
Ω - 2 TΩ.



   University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
   MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                      Dr. Stefan ANTOHE
                        OPTICAL CHARACTERIZATIONS

UV-VIS Spectrophotometer Perkin Elmer Lambda 35
                190 – 1100 nm wavelength
                equipped with integrating sphere, specular reflectance accesories
                operating in Transmission, Reflection and Absorption modes




  University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
  MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                     Dr. Stefan ANTOHE
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.
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.



  University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
  MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                     Dr. Stefan ANTOHE
       II. 2008-2009 Scientific Research Report of (MEOD)
I International Research Projects: Centre
[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

II 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)
4) Scientific Director of the Project: CEEX05 Nr.21/05.10.2005: "Multilayered nanowires for Giant
magneto resistance”(NANOSPINVALVE)
5) Scientific Director of the Project: CEEX05 Nr. 105/03.10.2005: "New Flexible Photovoltaic Systems
based on Polymeric materials" (SOLAR)
6) Scientific Director of the Project: CEEX05 Nr.46./05.10.2005: "Optical and Electronic Transport
Properties of Transition Metals Doped ZnO Nanowires" (NANOXID)
7) Scientific Director of the Project: CEEX05 Nr.4/03.10.2005: "Multifunctional materials with applications
in micro- and milimetric- waves" (MATMIUM)
8) Scientific Director of the Project: CEEX06 Nr.53 /2006: " Optical nanostructured Sensors for advanced
gases detection" (SONDAG)
9) Scientific Director of the Project: CEEX06 Nr. 33 /2006: „Investigation of bor Nitride as semiconductor
for extreme conditions”(SEMNITBOR),

      University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
      MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                         Dr. Stefan ANTOHE
10) Scientific Director of the Project: CEEX06 Nr. 24/25.07.2006:„Fundamental Research on InN
multifunctional materials for flexible optoelectronic Devicesl”(INDIN),
11) 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)
12) Member in the research team of the project: CEEX06 Nr. 2/2006: “Active laser Mediums for IR
range” (MALIR)
13) Member in the research team of the project: CEEX06 Nr. 1/2006: “nanowires from metalic
Oxides with semiconducting and magnetic propertiesi” (NANOSEMIMAGNET)
14) Director of Project: PN II PVCELLSA, D8- 81-030/2007, ,, Photovoltaic Cells for Space
Applications
15) Scientific Director of the Project: PN II Nr. 71-134 /2007 ELECTROCISCELL: " New type of
flexible solar cells based on electrodeposited CIGS compounds,
16) 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.
17) Scientific Director of the Project: PN II nr.: 72-162 “New materials with variable gap based on
InN, for Optoelectronic Devices – MinNA”
18) Scientific Director of the Project: PN II nr.: 71-149 ,,Materials for oxidic heterostructures for
Optoelectronic Devices”-HETOX
19) 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),
20) Scientific Director of the Project: PN II nr.72-162 “Non linear functionalities in nanostructured
photonic materials for IT applications” (FUNFOTON)




    University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
    MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                       Dr. Stefan ANTOHE
                                   III. Articles published in ISI journals 2008-2009:


[1] 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
[2] 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, (doi: 10. 1016/j.apsusc.2008.07.206)
[3] 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
[4] 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
[5] 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
[6] 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,
[7] Organic Photovoltaic Cells Based on ZnO Thin Film Electrodes, C.Ghica, L. Ion, G. Epurescu, L. Nistor, S.
Antohe, M. Dinescu, submitted to Nanostructured Materials 03.11.2008
[8] A versatile method to grow localized arrays of nanowires for highly sensitive capacitive devices, V. A.
ANTOHE*, A. RADUa, S. YUNUS, A. ATTOUT, P. BERTRAND, M. MÁTÉFI-TEMPFLI, L. PIRAUX, S. MÁTÉFI-
TEMPFLI*JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS Vol. 10, No. 11, November 2008,
p. 2936 – 2941
[9] Spin-box algorithm for low temperature dynamics of short range disordered Ising spin systems, G.A. Nemnes
a,∗, K.H. Hoffmannb Computer Physics Communications doi:10.1016/j.cpc.2008.12.038
          University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
          MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                             Dr. Stefan ANTOHE
[10] Nanowire-templated microelectrodes for high-sensitivity pH detection, Vlad Andrei Antohe,1,a_ Adrian
Radu,2 Mária Mátéfi-Tempfli,1 Anne Attout,1 Sami Yunus,1Patrick Bertrand,1 Constantin Augustin Duţu,3
Alexandru Vlad,3 Sorin Melinte,3, Stefan Mátéfi-Tempfli,1 and Luc Piraux1 APPLIED PHYSICS LETTERS
94, 073118 _2009_
[11] 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”,
accepted for publication in Applied Surface Science, Volume:255 Issue:10,Pages 5611-5614, published:
2009
[12] 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, April 2009, p. 425-428
[13] D. Băzăvan, Rosemary Băzăvan, I. Enculescu, Elena Matei, C. Necula, L. Ion, Ş. 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;
[14] Submicron wires with nanosized grain structure M. Sima, L. Ion , S. Antohe, E. Vasile Superlattices and
Microstructures 46 (6) (2009) 833_839
[15] 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)
[16] Effects of proton irradiation on structural and optical properties of CdS thin films used in photovoltaic
applications Veta GHENESCU2, L. ION1, M. GHENESCU2, M. RUSU3, M. GUGIU4, G. VELISA1,4, Oana
PPORUMB1,         S.    ANTOHE1 OPTOELECTRONICS                  AND      ADVANCED        MATERIALS-RAPID
COMMUNICATIONS Volume: 3 Issue: 10 Pages: 1023-1026 Published: 2009
[17] Thermo-electrical properties of nano-structured ballistic nanowires in the R-matrix formalism using the
Implicity Restarted Arnoldi Method, G. A. Nemnes, L. Ion, S. Antohe, PHYSE_D-09-00422, accepted to be
published in Physica E: Low-dimensional systems and Nanostructures, Vol ..pp (2010)

       University of Bucharest – Faculty of Physics      RESEARCH AND DEVELOPMENT CENTRE FOR MATERIALS AND
       MDEO Research Center                           ELECTRONIC&OPTOELECTRONIC DEVICES (MDEO) Director Prof. univ.
                                                                          Dr. Stefan ANTOHE

								
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