Interface design for high-efficiency non-fullerene polymer solar cells

被引：198

作者：

Sun, Chen ^{[1
]}

Wu, Zhihong ^{[1
]}

Hu, Zhanhao ^{[1
]}

Xiao, Jingyang ^{[1
]}

Zhao, Wenchao ^{[2
]}

Li, Ho-Wa ^{[3
]}

Li, Qing-Ya ^{[4
]}

Tsang, Sai-Wing ^{[3
]}

Xu, Yun-Xiang ^{[4
]}

Zhang, Kai ^{[1
]}

Yip, Hin-Lap ^{[1
]}

Hou, Jianhui ^{[2
]}

Huang, Fei ^{[1
]}

Cao, Yong ^{[1
]}

机构：

[1] South China Univ Technol, Inst Polymer Optoelect Mat & Devices, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China

[2] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China

[3] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon Tong, Hong Kong, Peoples R China

[4] Sichuan Univ, State Key Lab Polymer Mat Engn, Coll Polymer Sci & Engn, Chengdu 610065, Sichuan, Peoples R China

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2017年 / 10卷 / 08期

关键词：

POWER CONVERSION EFFICIENCY; ORGANIC PHOTOVOLTAICS; ACCEPTOR; ENERGY; DONOR; 11-PERCENT; MORPHOLOGY; STABILITY;

D O I：

10.1039/c7ee00601b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Non-fullerene polymer solar cells have attracted extensive attention due to their potential for overcoming the performance bottleneck currently encountered in fullerene-based photovoltaics. Herein, we report non-fullerene polymer solar cells with a maximal power conversion efficiency of over 11% by introducing an n-type water/alcohol soluble conjugated polymer as a cathode interlayer. We found that the contact between the n-type interlayer and the donor provides an extra interface for charge dissociation and the matching of energy levels between the n-type interlayer and the acceptor allows efficient electron extraction from the bulk heterojunction, which eventually leads to much improved performance. This study proposes a significant design rule for designing new interfaces for high performance non-fullerene photovoltaics.

引用

页码：1784 / 1791

页数：8

共 37 条

[1]

[Anonymous], 2013, NAT COMMUN

[2] 11.4% Efficiency non-fullerene polymer solar cells with trialkylsilyl substituted 2D-conjugated polymer as donor [J].