The influence of the π-bridging unit of fused-ring acceptors on the performance of organic solar cells

doi:10.1039/c8ta08410f

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	The influence of the π-bridging unit of fused-ring acceptors on the performance of organic solar cells
	Jiang, Pengcheng 2; Ming, Shouli 2; Jia, Qing-Qing 3; Liu, Yahui 2; Lu, Hao 1; Li, Miao 2; Xu, Xinjun 2; Li, Hai-Bei 3; Bo, Zhishan 2
刊名	Journal of Materials Chemistry A
	2018
卷号	6 期号:43 页码:21335-21340
关键词	Chemistry Materials science 3 ,4 ethylenedioxythiophene (EDOT) Bridging units High power conversion Methylene groups Molar absorption coefficient Photovoltaic performance Photovoltaic property Structural differences
ISSN号	20507488
DOI	10.1039/c8ta08410f
英文摘要	We have designed and synthesized two fused-ring small molecular acceptors IDT-PDOT and IDT-EDOT, comprising 3,4-propylenedioxythiophene (PDOT) and 3,4-ethylenedioxythiophene (EDOT) bridging units, respectively. The only structural difference between these two acceptors is one methylene group at the π-bridging unit. However, such a tiny structural difference exerts a great influence on the optical, electrical and photovoltaic properties of the acceptors. The molar absorption coefficient of IDT-EDOT is more than four times higher than that of IDT-PDOT. The electron mobility of the IDT-EDOT based blend film is one order of magnitude higher than that of the IDT-PDOT based one. Consequently, a high power conversion efficiency (PCE) of 11.32% for IDT-EDOT based devices was obtained, whereas a PCE of only 2.18% was achieved for IDT-PDOT based ones. Our results have demonstrated that changing the π-bridging unit in fused ring acceptors is an effective strategy to adjust their photovoltaic performance. © The Royal Society of Chemistry.
资助项目	Beijing Natural Science Foundation[2182030]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	Royal Society of Chemistry
WOS记录号	WOS:000449701900009
状态	已发表
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114851]
专题	兰州理工大学材料科学与工程学院
通讯作者	Xu, Xinjun; Bo, Zhishan
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China 2.Beijing Normal Univ, Coll Chem, Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China 3.Shandong Univ, Sch Ocean, Weihai 264209, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Pengcheng,Ming, Shouli,Jia, Qing-Qing,et al. The influence of the π-bridging unit of fused-ring acceptors on the performance of organic solar cells[J]. Journal of Materials Chemistry A,2018,6(43):21335-21340.
APA	Jiang, Pengcheng.,Ming, Shouli.,Jia, Qing-Qing.,Liu, Yahui.,Lu, Hao.,...&Bo, Zhishan.(2018).The influence of the π-bridging unit of fused-ring acceptors on the performance of organic solar cells.Journal of Materials Chemistry A,6(43),21335-21340.
MLA	Jiang, Pengcheng,et al."The influence of the π-bridging unit of fused-ring acceptors on the performance of organic solar cells".Journal of Materials Chemistry A 6.43(2018):21335-21340.