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Xiangyue Meng, Wenqing Zhang, Zhan'ao Tan, Yongfang Li, Yihan Ma, Taishan Wang, Li Jiang, Chunying Shu and Chunru Wang Highly Efficient and Thermally Stable Polymer Solar Cells with Dihydronaphthyl-Based [70]Fullerene Bisadduct Derivative as the Acceptor Advanced Functional Materials 22

Version of Record online: 27 FEB 2012 | DOI: 10.1002/adfm.201102771

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A dihydronaphthyl-based C70 bisadduct (NC70BA) is synthesized and explored as an acceptor in polymer solar cells. The solar cell based on poly(3-hexylthiophene) (P3HT):NC70BA shows a high open-circuit voltage and a high power conversion efficiency. The amorphous nature of NC70BA effectively suppresses the thermally driven crystallization, leading to high thermal stability of the P3HT:NC70BA-based solar cell devices.

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