期刊
ORGANIC CHEMISTRY FRONTIERS
卷 5, 期 19, 页码 2845-2851出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8qo00788h
关键词
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资金
- National Natural Science Foundation of China [21674093, 21722404, 21503203, 51473142]
- 973 program [2014CB643503]
- International Science and Technology Cooperation Program of China (ISTCP) [2016YFE0102900]
- National Key R&D Program of China [2017YFA0403403]
- Zhejiang Province Science and Technology Plan [2018C01047]
- Zhejiang Natural Science Fund for Distinguished Young Scholars [LR17E030001]
- Fundamental Research Funds for the Central Universities
Conductive fullerene surfactants, FPPI, Bis-FPPI, Bis-FIMG and Bis-FITG, are developed as electron transporting materials for achieving efficient organic and perovskite solar cells (OSCs and PVSCs) under mild solution-fabrication. One common structural feature of these fullerenes is a quaternary ammonium halide moiety, which enables electron transfer from constituent Lewis basic halides to adjacent -acidic fullerene, resulting in anion-induced n-doping of the derived fullerenes. These polar fullerenes, herein with suitable conductivities, work-function tunability and orthogonal solution-process abilities (to common organic semiconductors and perovskites), possess advantages as interlayers not only enabling good photovoltaic performance of OSCs and PVSCs, with over 19% power conversion efficiency made from mild fabrication, but also showing device performance insensitive to the interlayer thickness.
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