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Renewable energy

Evolution of morphology and open-circuit voltage in alloy-energy transfer coexisting ternary organic solar cells

Xia, Benzheng; Yuan, Liu; Zhang, Jianqi; Wang, Zaiyu; Fang, Jin; Zhao, Yifan; Deng, Dan; Ma, Wei; Lu, Kun; Wei, Zhixiang

(Natural) polymersCustomer publicationsGIWAXSPhase analysisRenewable energySelf-assembled material

Evolution of morphology and open-circuit voltage in alloy-energy transfer coexisting ternary organic solar cells

Xia, Benzheng; Yuan, Liu; Zhang, Jianqi; Wang, Zaiyu; Fang, Jin; Zhao, Yifan; Deng, Dan; Ma, Wei; Lu, Kun; Wei, Zhixiang

The oligomer-type small molecule PDT2FBT-ID is applied in a polymer/small molecule/fullerene ternary system. The PTB7-Th/PDT2FBT-ID/PC71BM ternary active layer shows complementary absorption spectra, enhanced face-on orientation and energy transfer properties. Compared to the binary system, the FF of the ternary system is improved from 66.72% to 76.14% and the Jsc is…