Proceedings of nanoGe Spring Meeting 2022 (NSM22)
DOI: https://doi.org/10.29363/nanoge.nsm.2022.354
Publication date: 7th February 2022
In recent years, organic solar cells (OSCs) have shown a tremendous increase in power conversion efficiencies (PCEs) to over 18% thanks to the development of novel non-fullerene acceptors (NFAs) and corresponding donor polymers. While the performance of OSCs has reached the level of commercial applications, the stability of the devices needs to be improved and is now the focus of research. This presentation will review recent progress in evaluating and understanding the intrinsic photostability of high-efficiency NFAs including ITIC derivatives, IDTBRs, Y family, and the resulting blends with PBDB-T (PCE12) or PBDB-T-2F (PM6) as the donor polymer by addressing impact of film crystallinity and molecular structure.
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