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Chang-Zhi Li, Chu-Chen Chueh, Feizhi Ding, Hin-Lap Yip, Po-Wei Liang, Xiaosong Li and Alex K.-Y. Jen Doping of Fullerenes via Anion-Induced Electron Transfer and Its Implication for Surfactant Facilitated High Performance Polymer Solar Cells Advanced Materials 25

Version of Record online: 17 JUN 2013 | DOI: 10.1002/adma.201300580

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Simple and solution-processible tetrabutyl-ammonium salts (TBAX) can dope fullerene and its derivatives to achieve conductive thin films (σ as high as 0.56 S/m). The electron transfer between the anions of TBAXs and n-type semiconductors induces doping without encountering any harsh activation. These provide valid support for the surfactant interfacial doping of fullerene in polymer solar cells for enhanced device performance.

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