Spirobifluorene-based acceptors for polymer solar cells: Effect of isomers

	Spirobifluorene-based acceptors for polymer solar cells: Effect of isomers
	Wang, Jiayu 1; Dai, Shuixing 1; Yao, Yuehan 1; Cheng, Pei 3,4; Lin, Yuze 2,3,4; Zhan, Xiaowei 1
刊名	DYES AND PIGMENTS
	2015-12-01
卷号	123 页码:16-25
关键词	Isomer Non-fullerene acceptor Spirobifluorene Polymer solar cell Solution process Fullerene free
英文摘要	Two spirobifluorene-based isomeric acceptors (SBF1 and SBF2) with electron-withdrawing 1,1-dicyanomethylene-3-indanone as end groups were theoretically studied, synthesized and applied as electron acceptors for solution-processed polymer solar cells (PSCs). SBF1 possessed three-dimensional molecular structure while SBF2 was more planar. The effect of molecular configuration on absorption, energy level, charge transport, morphology and PSC performance was investigated. These molecules exhibited good thermal stability with decomposition temperatures of 345-348 degrees C, broad absorption in visible region (400-650 nm), and proper HOMO (-5.96 to -5.94 eV) and LUMO (-3.86 to -3.78 eV) energy levels. The mobility of SBF2 (7.2 x 10(-4) cm(2) V-1 s(-1)) was one order of magnitude higher than that of SBF1 (6.1 x 10(-5) cm(2) V-1 s(-1)). When blending with low-bandgap polymer donor PBDITT-C-T, the power conversion efficiencies of SBF2-based PSCs were ca. 50% higher than those of SBF1-based devices. (C) 2015 Elsevier Ltd. All rights reserved.
收录类别	SCI
语种	英语
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/29757]
专题	化学研究所_有机固体实验室
作者单位	1.Peking Univ, Dept Mat Sci & Engn, Coll Engn, Key Lab Polymer Chem & Phys,Minist Educ, Beijing 100871, Peoples R China 2.Capital Normal Univ, Dept Chem, Beijing 100048, Peoples R China 3.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jiayu,Dai, Shuixing,Yao, Yuehan,et al. Spirobifluorene-based acceptors for polymer solar cells: Effect of isomers[J]. DYES AND PIGMENTS,2015,123:16-25.
APA	Wang, Jiayu,Dai, Shuixing,Yao, Yuehan,Cheng, Pei,Lin, Yuze,&Zhan, Xiaowei.(2015).Spirobifluorene-based acceptors for polymer solar cells: Effect of isomers.DYES AND PIGMENTS,123,16-25.
MLA	Wang, Jiayu,et al."Spirobifluorene-based acceptors for polymer solar cells: Effect of isomers".DYES AND PIGMENTS 123(2015):16-25.