Efficient strategies to improve photovoltaic performance of linear-shape molecules by introducing large planar aryls in molecular center and terminals

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 先进有机功能材料团队

	Efficient strategies to improve photovoltaic performance of linear-shape molecules by introducing large planar aryls in molecular center and terminals
	Zhang, Youming 1; Xiao, Manjun 1,2; Su, Ning 1; Zhong, Juan 1; Tan, Hua 1; Wang, Yafei 1; Liu, Yu 1; Pei, Yong 1; Yang, Renqiang2 ; Zhu, Weiguo 1
刊名	ORGANIC ELECTRONICS
	2015-02-01
卷号	17 页码:198-207
关键词	Phenanthrene Diketopyrrolopyrrole Triphenylamine Carbazole Fluorene Organic solar cells
英文摘要	Three novel linear-shape small molecules of TPA(DPP-PN)(2), Cz(DPP-PN)(2) and Fl(DPP-PN)(2) were synthesized and characterized, which contain the same arm of diketopyrrolopyrrole (DPP) and large aryl terminals of phenanthrene (PN), as well as different aryl centers of triphenylamine( TPA), carbazole (Cz) and fluorene (Fl), respectively. Narrower optical band gaps (1.62-1.69 eV) and lower highest occupied molecular orbital energy levels (-5.71 to -5.79 eV) were observed in these small molecules compared with those corresponding values of the analogues without the PN terminal. Furthermore, the Cz(DPP-PN)(2) and Fl(DPP-PN)(2) molecules with planar centers exhibited better photovoltaic performance than the TPA(DPP-PN)(2) with a non-planar center in the solution-processed organic solar cells using [6,6]-phenyl-C61-butyric acid methyl ester as acceptor. The highest power conversion efficiency of 4.13% and a short-circuit current density of 8.77 mA cm(-2) were obtained in the Fl(DPP-PN)(2) based cell. It indicates that introducing large planar aryl groups as molecular center and terminals is an efficient strategy to improve absorption and photovoltaic performances in their linear-shape A-D-A-type small molecules. (C) 2014 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]	Materials Science ; Physics
关键词[WOS]	ORGANIC SOLAR-CELLS ; POWER-CONVERSION EFFICIENCY ; CONJUGATED POLYMER ; DIKETOPYRROLOPYRROLE ; UNIT ; TRIPHENYLAMINE ; DERIVATIVES ; TANDEM ; DONOR ; CORE
收录类别	SCI
语种	英语
WOS记录号	WOS:000348495400027
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/6097]
专题	青岛生物能源与过程研究所_先进有机功能材料团队
作者单位	1.Xiangtan Univ, Coll Chem, Key Lab Environm Friendly Chem & Applicat, Minist Educ, Xiangtan 411105, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Youming,Xiao, Manjun,Su, Ning,et al. Efficient strategies to improve photovoltaic performance of linear-shape molecules by introducing large planar aryls in molecular center and terminals[J]. ORGANIC ELECTRONICS,2015,17:198-207.
APA	Zhang, Youming.,Xiao, Manjun.,Su, Ning.,Zhong, Juan.,Tan, Hua.,...&Zhu, Weiguo.(2015).Efficient strategies to improve photovoltaic performance of linear-shape molecules by introducing large planar aryls in molecular center and terminals.ORGANIC ELECTRONICS,17,198-207.
MLA	Zhang, Youming,et al."Efficient strategies to improve photovoltaic performance of linear-shape molecules by introducing large planar aryls in molecular center and terminals".ORGANIC ELECTRONICS 17(2015):198-207.