A PTB7-based narrow band-gap conjugated polyelectrolyte as an efficient cathode interlayer in PTB7-based polymer solar cellsElectronic supplementary information (ESI) available: Experimental part, details of synthesis and characterization of PTB7-NBr, thickness-absorption, device stability, AFM, and SCLC. See DOI: 10.1039/c6cc09274h

A PTB7-based cationic narrow band-gap polyelectrolyte, named PTB7-NBr, has been designed and synthesized as a cathode interfacial material for polymer solar cells. PTB7-NBr exhibits excellent cathode interfacial modification in solar cells with PTB7 and PTB7-Th as donor polymer and a high PCE of 9.2...

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Bibliographic Details
Main Authors: Zhang, Wenjun, Li, Yaru, Zhu, Liping, Liu, Xiaohui, Song, Changjian, Li, Xiaodong, Sun, Xiaohua, Fang, Junfeng
Format: Article
Language:English
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Summary:A PTB7-based cationic narrow band-gap polyelectrolyte, named PTB7-NBr, has been designed and synthesized as a cathode interfacial material for polymer solar cells. PTB7-NBr exhibits excellent cathode interfacial modification in solar cells with PTB7 and PTB7-Th as donor polymer and a high PCE of 9.24% was achieved. Polymer solar cells with a cationic PTB7 derivative as a cathode interlayer and neutral PTB7 derivatives as donor polymers were fabricated, and a high PCE of 9.24% was obtained.
ISSN:1359-7345
1364-548X
DOI:10.1039/c6cc09274h