Proceedings of International Conference Asia-Pacific Hybrid and Organic Photovoltaics 2018 (AP-HOPV18)
Publication date: 27th October 2017
Polymer solar cells (PSCs) are in the spotlight as a potential technology for the development of flexible and portable photovoltaic devices because of their superior mechanical flexibility and ability to allow low-cost solution processing on a plastic substrate. Lately, bulk heterojunction (BHJ) polymer solar cells consisting of polymer donor-fullerene acceptor blends have been reported to exhibit high power conversion efficiencies (PCEs) of greater than over 10%. A fine morphology that forms an interpenetrating donor-acceptor (D-A) networks is specifically necessary to obtain highly efficient PSCs. In the study, we designed and synthesized D-A copolymers via tuning the shape and length of alkyl side chain in the backbone. Synthesized D-A copolymers exhibited each different behaviour of their properties as kind of alkyl side chain. The among of polymers, we reached the nearly 9% of PCE in optimized polymer structure.
Keywords: Polymer solar cells (PSCs), Organic solar cells (OSCs), Organic Photovoltaics (OPVs), Fullerene, side chain engineering
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