A New Electron Acceptor with meta-Alkoxyphenyl Side Chain for Fullerene-Free Polymer Solar Cells with 9.3% Efficiency

doi:10.1002/advs.201700152

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	A New Electron Acceptor with meta-Alkoxyphenyl Side Chain for Fullerene-Free Polymer Solar Cells with 9.3% Efficiency
	Zhang, Zhenzhen 1; Feng, Liuliu 1; Xu, Shutao 1; Liu, Ye 1; Peng, Hongjian 1; Zhang, Zhi-Guo 2; Li, Yongfang 2; Zou, Yingping 1
刊名	ADVANCED SCIENCE
	2017-11-01
卷号	4 期号:11
关键词	Hexafluoroquinoxaline-based Polymers M-itic-or Meta-alkoxyphenyl Side Chains Nonfullerene Polymer Solar Cells
ISSN号	2198-3844
DOI	10.1002/advs.201700152
英文摘要	A new small molecule acceptor, m-ITIC-OR, based on indacenodithieno[3,2-b]thiophene core with meta-alkoxyphenyl side chains, is designed and synthesized. The m-ITIC-OR film shows broader and redshift absorption compared to its solution and matched energy levels with a hexafluoroquinoxaline-based polymer donor-HFQx-T. Here, polymer solar cells (PSCs) by blending an HFQx-T donor and an m-ITIC-OR acceptor as an active layer deliver the power conversion efficiency (PCE) of 6.36% without any posttreatment. The investigations demonstrate that the HFQx-T:m-ITIC-OR blend films possess higher and more balanced charge mobility, negligible bimolecular recombination, and nanoscale interpenetrating morphology after thermal annealing (TA) treatment. Through a simple TA treatment at 150 degrees C for 5 min, an impressive PCE of 9.3% is obtained. This efficiency is among one of the highest PCEs for additive free PSCs. This is the first time alkoxyphenyl side chain is introduced into nonfullerene electron acceptor; more interestingly, the new electron acceptor (m-ITIC-OR) in this work shows a great potential for highly efficient photovoltaic properties.
语种	英语
出版者	WILEY
WOS记录号	WOS:000416155900006
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45047]
专题	中国科学院化学研究所
通讯作者	Zou, Yingping
作者单位	1.Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhenzhen,Feng, Liuliu,Xu, Shutao,et al. A New Electron Acceptor with meta-Alkoxyphenyl Side Chain for Fullerene-Free Polymer Solar Cells with 9.3% Efficiency[J]. ADVANCED SCIENCE,2017,4(11).
APA	Zhang, Zhenzhen.,Feng, Liuliu.,Xu, Shutao.,Liu, Ye.,Peng, Hongjian.,...&Zou, Yingping.(2017).A New Electron Acceptor with meta-Alkoxyphenyl Side Chain for Fullerene-Free Polymer Solar Cells with 9.3% Efficiency.ADVANCED SCIENCE,4(11).
MLA	Zhang, Zhenzhen,et al."A New Electron Acceptor with meta-Alkoxyphenyl Side Chain for Fullerene-Free Polymer Solar Cells with 9.3% Efficiency".ADVANCED SCIENCE 4.11(2017).