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Zhicai He, Chengmei Zhong, Xun Huang, Wai-Yeung Wong, Hongbin Wu, Liwei Chen, Shijian Su and Yong Cao Simultaneous Enhancement of Open-Circuit Voltage, Short-Circuit Current Density, and Fill Factor in Polymer Solar Cells Advanced Materials 23

Article first published online: 9 SEP 2011 | DOI: 10.1002/adma.201103006

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Simultaneous enhancement of open-circuit voltage, short-circuit current density, and fill factor in highly efficient polymer solar cells by incorporating an alcohol/water-soluble conjugated polymer as cathode interlayer is domonstrated. When combined with a low-bandgap polymer PTB7 as the electron donor material, the power efficiency of the devices is improved to certified 8.370%. Due to drastic improvement in efficiency and easy utilization, this method opens new opportunities for PSCs from various material systems to improve towards 10% efficiency.

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