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Study of electrical and optical properties of ITO/PEDOT/P3HT:PCBM(1:1)/LiF/Al photovoltaic structures

S. IFTIMIE1, A. MAJKIC2, C. BESLEAGA1, V. A. ANTOHE1, A. RADU1, M. RADU1, I. ARGHIR1, C. FLORICA1, L. ION1, G. BRATINA2, S. ANTOHE1,*

Affiliation

  1. University of Bucharest, Faculty of Physics, 405 Atomistilor street, PO BOX MG-11, 077125, Magurele-Ilfov, Romania
  2. University of Nova Gorica, Vipavska 13, POB 301 SI-5000 Nova Gorica, Slovenia

Abstract

ITO/PEDOT/P3HT:PCBM(1:1)/LiF/Al photovoltaic cells were prepared by spin coating technique, using optical glass substrates covered with a thin ITO layer. The samples have the same structure, differing by LiF layer thickness. I-V characteristics in dark and under monochromatic light were recorded, at room temperature. The fill factor and the power conversion efficiency were calculated for each sample. The cell parameters in regime of photo-element were determined and their dependence on the thickness of the LiF layer are presented and discussed..

Keywords

Polymer blends, P3HT, PCBM, Bulk-heterojunction, Photovoltaic cells.

Submitted at: Sept. 30, 2010
Accepted at: Oct. 14, 2010

Citation

S. IFTIMIE, A. MAJKIC, C. BESLEAGA, V. A. ANTOHE, A. RADU, M. RADU, I. ARGHIR, C. FLORICA, L. ION, G. BRATINA, S. ANTOHE, Study of electrical and optical properties of ITO/PEDOT/P3HT:PCBM(1:1)/LiF/Al photovoltaic structures, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 10, pp. 2171-2175 (2010)