Highly crystalline and low bandgap donor polymers for efficient polymer solar cells.

Liu, Jun; Choi, Hyosung; Kim, Jin Young; Bailey, Chris; Durstock, Michael; Dai, Liming · Adv Mater · 2012

basic_science · Level V

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Abstract

A highly crystalline and low bandgap donor polymer, EI-PFDTBT, is developed by inserting ethylene bridging units to ensure a coplanar configuration between the side chains and the main chain. Polymer solar cells based on the EI-PFDTBT and PC(71) BM blends spincoated at elevated temperatures exhibit a power conversion efficiency of 5.1%.

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