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Yen-Ju Cheng, Chao-Hsiang Hsieh, Pei-Jung Li and Chain-Shu Hsu Morphological Stabilization by In Situ Polymerization of Fullerene Derivatives Leading to Efficient, Thermally Stable Organic Photovoltaics Advanced Functional Materials 21

Version of Record online: 17 MAR 2011 | DOI: 10.1002/adfm.201002502

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Two styryl-functionalized fullerene derivatives, PCBS and PCBSD, have been designed, synthesized, and used to dope a polymer-blend system. The optimized morphology of the blend induced at the first stage (at 110°C) is stabilized by in situ polymerization of PCBS or PCBSD at the second stage (at 150°C). Devices based on this strategy shotw high performance with exceptional thermal stability.

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