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A Critical Review on Efficient Thick‐Film Organic Solar Cells
Author(s) -
Gao Jinhua,
Wang Jian,
Xu Chunyu,
Hu Zhenghao,
Ma Xiaoling,
Zhang Xiaoli,
Niu Lianbin,
Zhang Jian,
Zhang Fujun
Publication year - 2020
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.202000364
Subject(s) - organic solar cell , materials science , optoelectronics , energy conversion efficiency , active layer , short circuit , nanotechnology , engineering physics , composite material , electrical engineering , engineering , layer (electronics) , voltage , polymer , thin film transistor
To date, the power conversion efficiency (PCE) of lab‐scale organic solar cells (OSCs) has exceeded 17%, which heralds the bright future for commercial applications of OSCs. High‐performance OSCs with thick active layers are essential for large‐scale production. First, the relatively thick active layers should be more compatible with the roll‐to‐roll (R2R) large‐area processing, which is conducive to forming uniform and defect‐free active layers in the process of high‐speed, mass production. Second, the thick active layers can absorb more incident light in their spectral range, which helps thick‐film OSCs to obtain relatively high short‐circuit current density ( J SC ). So far, relatively little attention has been paid to thick‐film OSCs, and the PCE of thick‐film OSCs lags far behind its thin‐film analogues. Herein, the recent development of thick‐film OSCs is highlighted and the critical limit factors on the PCE of thick‐film OSCs are pointed out. Some strategies are highlighted to improve the efficiency of thick‐film OSCs. This review study will be helpful to the researchers engaging in the development of efficient thick‐film OSCs.