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Anthracene‐Containing Wide‐Band‐Gap Conjugated Polymers for High‐Open‐Circuit‐Voltage Polymer Solar Cells
Author(s) -
Gong Xue,
Li Cuihong,
Lu Zhen,
Li Guangwu,
Mei Qiang,
Fang Tao,
Bo Zhishan
Publication year - 2013
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201300299
Subject(s) - polymer , materials science , polymer solar cell , band gap , anthracene , energy conversion efficiency , conjugated system , open circuit voltage , acceptor , optoelectronics , solar cell , polymer chemistry , photochemistry , voltage , chemistry , composite material , physics , quantum mechanics , condensed matter physics
The synthesis, characterization, and photophysical and photovoltaic properties of two anthracene‐containing wide‐band‐gap donor and acceptor (D–A) alternating conjugated polymers ( P1 and P2 ) are described. These two polymers absorb in the range of 300–600 nm with a band gap of about 2.12 eV. Polymer solar cells with P1 :PC 71 BM as the active layer demonstrate a power conversion efficiency (PCE) of 2.23% with a high V oc of 0.96 V, a J sc of 4.4 mA cm −2 , and a comparable fill factor (FF) of 0.53 under simulated solar illumination of AM 1.5 G (100 mW cm −2 ). In addition, P2 :PC 71 BM blend‐based solar cells exhibit a PCE of 1.42% with a comparable V oc of 0.89 V, a J sc of 3.0 mA cm −2 , and an FF of 0.53.