中国科学院重庆绿色智能技术研究院机构知识库

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	Facile synthesis of bis-dicyanovinylidene-end-capped push-pull molecules as panchromatic absorbers
	Duan, Tainan1,2; Liang, Ru-Ze3; Pai, Yi-Fang3; Wan, Kaili1,4; Zhong, Cheng5; Lu, Shirong1; Yu, Donghong2,6
	2019-02-01
摘要	A new pi-conjugated building block containing bis-dicyanovinylidene as an end-capping group has been explored for the development of n-type organic semiconductors. This building block can be easily obtained from commercialized 2,3-thiophenedicarboxaldehyde and introduced into a pi-conjugated system in high-yield. By using indaceno[1,2-b:5,6-b']dithiophene (IDT) as the core moiety, an A-pi-D-pi-A molecule with up to 8 cyano-groups (DH8CN) was firstly synthesized and employed as an electron-accepting material in bulk-heterojunction organic solar cells. Preliminary organic cell fabrication gave a 1.1% power conversion efficiency with PTB7-Th and DH8CN as active layer, show the potential of this bis-dicyanovinylidene group in organic photovoltaics.
关键词	Electron acceptor Dicyanovinylidene End-capping group Organic photovoltaics Photovoltaic performances Device fabrication
DOI	10.1016/j.dyepig.2018.09.060
发表期刊	DYES AND PIGMENTS
ISSN	0143-7208
卷号	161页码:227-232
收录类别	SCI
WOS记录号	WOS:000449241200027
语种	英语