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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:53 |
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Conference: Bucharest University Faculty of Physics 2012 Meeting
Section: Solid State Physics and Materials Science
Title:
ZnO nanoparticles influence on photovoltaic performances
of polymeric blends based on MEH-PPV:PCBM
Authors:
Sorina IFTIMIE, Simona CRACIUN, A. RADU, Raluca CONSTANTINEANU, Andra SANCIU, Oana BRINCOVEANU, L. ION, S. ANTOHE
Affiliation:
University of Bucharest, Faculty of Physics, 405 Atomistilor,
077125, Magurele-Ilfov, Romania
E-mail
sorina.iftimie@fizica.unibuc.ro
Keywords:
ZnO nanoparticles, photovoltaic cells
Abstract:
Photovoltaic polymeric blends based on MEH-PPV:PCBM(1:4) were prepared both on optical glass and flexible substrates. ZnO nanoparticles, different amounts from 0.1 mg to 0.3 mg, were added on PEDOT:PSS solution. All the polymeric films were deposited by spin-coating technique. The samples were electrical and photoelectrical characterized, at room temperature. The I-V curves were drawn in dark and in AM 1.5 conditions, respectively, and the obtained results were compared. The photovoltaic cell parameters, fill factor, open circuit voltage and short-circuit current, were calculated for all prepared devices and compared. Photoelectrical measurements indicate that the ZnO nanoparticles have a positive influence on the conversion efficiency, reducing the serial resistance of the structures and improving the stability of the cells.
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