1998 volume 8. 1992 volume 1. The influence of different anode buffer layers on the performance of solar cells based on blends of polyfluorene copolymer poly 2 7 9 9 dioctyl fluorene alt 5 5 4 7 di 2 thienyl 2 1 3 benzothiadiazole dio pfdtbt acting as electron donor and 6 6 phenyl c61 butyric acid methylester pcbm acting as electron acceptor was studied.
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