Improving the Photovoltage of Dithienopyrrole Dye-Sensitized Solar Cells via Attaching the Bulky Bis(octyloxy) biphenyl Moiety to the Conjugated pi-Linker

doi:10.1002/adfm.201203348

CORC > 化学研究所 > 中国科学院化学研究所

	Improving the Photovoltage of Dithienopyrrole Dye-Sensitized Solar Cells via Attaching the Bulky Bis(octyloxy) biphenyl Moiety to the Conjugated pi-Linker
	Cai, Ning; Zhang, Jing; Xu, Mingfei; Zhang, Min; Wang, Peng
刊名	ADVANCED FUNCTIONAL MATERIALS
	2013-07-26
卷号	23 期号:28 页码:3539-3547
关键词	Solar Cells Organic Dyes Charge Transfer Interfacial Microstructures
ISSN号	1616-301X
DOI	10.1002/adfm.201203348
英文摘要	The judicious design of 3D giant organic dye molecules to enable the formation of a porous photoactive layer on the surface of titania is one of the viable tactics to abate the adverse interfacial charge recombination in dye-sensitized solar cells (DSCs) employing outer-sphere redox couples. Here 2,6-bis(octyloxy)-biphenyl substituted dithieno[3,2-b:2,3-d]pyrrole segment is constructed and employed as the -linker of a high molar absorption coefficient organic push-pull dye. With respect to its congener possessing the hexyl substituted dithieno[3,2-b:2,3-d]pyrrole linker, the new dye can self-assemble on the surface of titania to afford a porous organic coating, which effectively slow down the kinetics of charge recombination of titania electrons with both outer-sphere tris(1,10-phenanthroline)cobalt(III) ions and photooxidized dye molecules, improving the cell photovoltage. In addition, the diminishments of charge recombination via modulating the microstructure of interfacial functional zone can also overcompensate the disadvantageous impact of reduced light-harvesting and evoke an enhanced photocurrent output, bringing forth an efficiency improvement from 7.5% to 9.3% at the 100 mW cm(-2), simulated AM1.5 conditions.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000327490000008
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/47063]
专题	中国科学院化学研究所
通讯作者	Cai, Ning
作者单位	Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Cai, Ning,Zhang, Jing,Xu, Mingfei,et al. Improving the Photovoltage of Dithienopyrrole Dye-Sensitized Solar Cells via Attaching the Bulky Bis(octyloxy) biphenyl Moiety to the Conjugated pi-Linker[J]. ADVANCED FUNCTIONAL MATERIALS,2013,23(28):3539-3547.
APA	Cai, Ning,Zhang, Jing,Xu, Mingfei,Zhang, Min,&Wang, Peng.(2013).Improving the Photovoltage of Dithienopyrrole Dye-Sensitized Solar Cells via Attaching the Bulky Bis(octyloxy) biphenyl Moiety to the Conjugated pi-Linker.ADVANCED FUNCTIONAL MATERIALS,23(28),3539-3547.
MLA	Cai, Ning,et al."Improving the Photovoltage of Dithienopyrrole Dye-Sensitized Solar Cells via Attaching the Bulky Bis(octyloxy) biphenyl Moiety to the Conjugated pi-Linker".ADVANCED FUNCTIONAL MATERIALS 23.28(2013):3539-3547.