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High‐Efficiency Organic Solar Cells with Wide Toleration of Active Layer Thickness
Author(s) -
Weng Kangkang,
Ye Linglong,
Li Chao,
Shen Zichao,
Xu Jinqiu,
Feng Xiang,
Xia Tian,
Tan Songting,
Lu Guanghao,
Liu Feng,
Sun Yanming
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.202000476
Subject(s) - active layer , organic solar cell , materials science , layer (electronics) , toleration , energy conversion efficiency , fabrication , polymer solar cell , nanotechnology , polymer , optoelectronics , composite material , medicine , thin film transistor , alternative medicine , pathology , politics , political science , law
Industrial printing production of organic solar cells (OSCs) requires high power conversion efficiency (PCE) with wide toleration of active layer thickness. Herein, high‐efficiency thick‐film OSCs are demonstrated using a polymer fibril network strategy (FNS), which involves a donor polymer (PT2) that can self‐assemble into fibril nanostructure, and two nonfullerene acceptors with different crystalline properties. The fibril network can form a high‐speed hole transport channel and the addition of IDIC as a third component in active layers can improve the electron transport. As a result, the OSCs show high PCEs of ≈12% with wide toleration of active layer thickness (from 100 to 500 nm). The results indicate that FNS is a promising approach for the fabrication of highly efficient thick‐film PSCs, which can facilitate the commercialization of OSCs.