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- W2898820640 abstract "Solution-processed bulk-heterojunction solar cells (BHJSCs) are the focus of photovoltaic research for the last 20 years due to new materials development, bandgap tunability through molecular design, high efficiency, and cost-effective fabrication and optimization. Much attention has been paid to the design and development of donor materials whereas the development of new electron accepting materials is at its infancy. For a long time fullerene and its derivatives have dominated the field as electron acceptor materials. In last few years, a significant progress has been made towards the development of fullerene-free acceptors (FFA) which in combination with conjugated polymers/oligomers as the donors reached power conversion efficiencies (PCE) up to 14% and exceed those of the fullerene-based OSCs. These sharp growth in PCE makes OSCs as one of the fastest growing solar technology. Specifically, in these devices the choice of FFAs and corresponding complementary donor materials plays critical role in achieving high efficiencies. This chapter summarizes recent development in the design principles of FFAs for BHJSCs. The role of FFAs in binary and ternary devices is discussed as a way to improve the device performance. A special attention is paid to the structure-activity relationships with the device performance and an approach for efficiency enhancement of OSCs." @default.
- W2898820640 created "2018-11-09" @default.
- W2898820640 creator A5062649525 @default.
- W2898820640 creator A5067016105 @default.
- W2898820640 date "2018-11-02" @default.
- W2898820640 modified "2023-09-26" @default.
- W2898820640 title "Fullerene-Free Molecular Acceptors for Organic Photovoltaics" @default.
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