Mariana Sima Ph. D 

Scientific Researcher

phone: +40-21369 0170 / 142
Fax    : +40-21369 0177



2011 - PhD in Chemistry at Politehnica University of Bucharest, with a subject about the synthesis and characterization of ZnO nanowires doped with transition metals ions

2007 - Enrolled for a PhD at Politehnica University, Bucharest

1981 - Chem. Eng. diploma at Polytechnic Institute of Iasi




Preparation and characterization by electrochemical methods of ZnO and doped ZnO nano and microwires.




1. A new ZnO photoanode for dye-sensitized solar cell, M. Sima, M. Secu, Mariana Sima, E. Vasile. OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS  Vol: 4   Issue: 9   Pages: 1324-1328   (2010)


2. Electrochemically deposited thermoelectric Bi(2)(Se,Te)(3) nanowires,M. Sima, E. Vasile, Mariana Sima, OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS  Vol: 3   Issue: 6   Pages: 539-542   (2009)


3. Photoluminescence and thermoluminescence of ZnO nano-needle arrays and films,C.E. Secu , Mariana Sima, Optical Materials 31, p 876-880 (2009)


4. PbSe nanowires grown by template method, Mariana Sima, Enculescu I., Sima M.,Optoelectronics Advanced Materials-Rapid Commun. 2 (2)  67-70 (2008)


5. ZnO micro and nanowire array prepared by electrochemical methods, Mariana. Sima, E. Vasile, M. Sima, T. Visan , Analele Universităţii din Oradea-fascicula Chimie, Vol. XV, 98-103 (2008),


6. Influence of polyvinylpyrrolidone as an additive in electrochemical preparation of ZnO nanowires and nanostructured thin films, I.Enculescu, E.Matei, Mariana Sima, M.Enculescu , M.Sima, C.Ghica, Surface and Interface Analysis 40, 556-560 (2008)


7. Luminescence and EPR study of ZnO:Mn:Cu nanowire array ,Sima M., Enculescu I., Grecu M.N., Secu M., Sima Mariana., Matei E., Vasile V., Physica E 40 (7) 2494-2498 (2008)


8. EIS studies of electrodeposition process of manganese and copper doped ZnO wires , Sima M., Enculescu I., Sima Mariana., Vasile E., Visan T., Surf. Interface Anal. 40 (3-4), 561-565 (2008)


9. Investigation by electrochemical impedance spectroscopy of electrodeposition of zinc oxide microwires using template method, Sima M., Manea A.C., Sima Mariana., Visan T. Revista de Chimie, 58 (8), pp. 741-746 (2007)