Abstract: The organic thin-film solar cells based on flexible substrates were studied theoretically. poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) as the donor layer and fullerene (C60) as the acceptor layer are used. The theoretical results show that the absorption of light can greatly influence the short circuit current, the open circuit voltage, the fill factor and the energy conversion efficiency. It was found that the thickness of C60 acceptor layer has a great influence on the performance of organic solar cell. When the thickness of acceptor layer was 200 nm, the energy conversion efficiency reached 7.95%.
Keywords: Energy conversion efficiency, organic photovoltaic cells, PEDOT: PSS, C60, open circuit voltage, short-circuit current