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Ploymer Solar Cells: Polymer Solar Cells Exceeding 10% Efficiency Enabled via a Facile Star‐Shaped Molecular Cathode Interlayer with Variable Counterions (Adv. Funct. Mater. 26/2016)
Author(s) -
Wang Zhenguo,
Li Zuojia,
Xu Xiaopeng,
Li Ying,
Li Kai,
Peng Qiang
Publication year - 2016
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201670167
Subject(s) - materials science , counterion , ion , ammonium , photovoltaic system , polymer , cathode , polymer solar cell , molecule , chemical engineering , solar cell , chemical physics , optoelectronics , chemistry , organic chemistry , composite material , engineering , ecology , biology
On page 4643, Q. Peng and co‐workers present a series of star‐shaped small molecular cathode interlayer (CIL) materials for photovoltaic applications. They investigate how different pendant polar functionalities with or without mobile counterions influence the photovoltaic properties, including neutral amino groups, quaternary ammonium ions, amino N ‐oxide, and sulfobetaine ions. A high efficiency of 10.1%, preceding that of the PFN device, was achieved by using the CIL molecule with pendant quaternary ammonium ions.