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Adding Amorphous Content to Highly Crystalline Polymer Nanowire Solar Cells Increases Performance
Author(s) -
Yan Han,
Song Yin,
McKeown George R.,
Scholes Gregory D.,
Seferos Dwight S.
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201501065
Subject(s) - materials science , amorphous solid , photovoltaic system , polymer , phase (matter) , organic solar cell , nanowire , polymer solar cell , optoelectronics , nanotechnology , solar cell , composite material , crystallography , ecology , chemistry , organic chemistry , biology
Polymer solar cells are fabricated with systematic variation of the phase purity. Photovoltaic tests demonstrate that devices with ca. 10% of mixed phases outperform pure‐phase devices. Photophysical studies reveal the effects of mixed phase on charge generation and recombination. These results show a promising strategy for the optimization of organic electronic materials.