Critical Role of Molecular Electrostatic Potential on Charge Generation in Organic Solar Cells

doi:10.1002/cjoc.201800015

CORC > 化学研究所 > 中国科学院化学研究所

	Critical Role of Molecular Electrostatic Potential on Charge Generation in Organic Solar Cells
	Yao, Huifeng 1; Qian, Deping 2; Zhang, Hao 1,3; Qin, Yunpeng 1,3; Xu, Bowei 1; Cui, Yong 1,3; Yu, Runnan 1,3; Gao, Feng 2; Hou, Jianhui 1,3
刊名	CHINESE JOURNAL OF CHEMISTRY
	2018-06-01
卷号	36 期号:6 页码:491-494
关键词	Organic Solar Cells Non-fullerene Acceptor Molecular Electrostatic Potential Exciton Dissociation
ISSN号	1001-604X
DOI	10.1002/cjoc.201800015
英文摘要	Revealing the charge generation is a crucial step to understand the organic photovoltaics. Recent development in non-fullerene organic solar cells (OSCs) indicates efficient charge separation even with negligible energetic offset between the donor and acceptor materials. These new findings trigger a critical question concerning the charge separation mechanism in OSCs, traditionally believed to result from sufficient energetic offset between the polymer donor and fullerene acceptor. We propose a new mechanism, which involves the molecular electrostatic potential, to explain efficient charge separation in non-fullerene OSCs. Together with the new mechanism, we demonstrate a record efficiency of similar to 12% for systems with negligible energetic offset between donor and acceptor materials. Our analysis also rationalizes different requirement of the energetic offset between fullerene-based and non-fullerene OSCs, and paves the way for further design of OSC materials with both high photocurrent and high photovoltage at the same time.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000431977300003
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/43211]
专题	中国科学院化学研究所
通讯作者	Gao, Feng; Hou, Jianhui
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, State Key Lab Polymer Phys & Chem, CAS Res Educ Ctr Excellence Mol Sci,Inst Chem, Beijing 100190, Peoples R China 2.Linkoping Univ, Dept Phys Chem & Biol IFM, S-58183 Linkoping, Sweden 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yao, Huifeng,Qian, Deping,Zhang, Hao,et al. Critical Role of Molecular Electrostatic Potential on Charge Generation in Organic Solar Cells[J]. CHINESE JOURNAL OF CHEMISTRY,2018,36(6):491-494.
APA	Yao, Huifeng.,Qian, Deping.,Zhang, Hao.,Qin, Yunpeng.,Xu, Bowei.,...&Hou, Jianhui.(2018).Critical Role of Molecular Electrostatic Potential on Charge Generation in Organic Solar Cells.CHINESE JOURNAL OF CHEMISTRY,36(6),491-494.
MLA	Yao, Huifeng,et al."Critical Role of Molecular Electrostatic Potential on Charge Generation in Organic Solar Cells".CHINESE JOURNAL OF CHEMISTRY 36.6(2018):491-494.