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	Size effects of oligothiophene on the dynamics of electron transfer in pi-conjugated oligothiophene-perylene bisimide dyads
	Huang, Jie1,2; Fu, Hongbing1; Wu, Yishi1; Chen, Shiyan1; Shen, Fugang1; Zhao, Xiaohui1; Liu, Yunqi1; Yao, Jiannian1
刊名	Journal of physical chemistry c
	2008-02-21
卷号	112期号:7页码:2689-2696
ISSN号	1932-7447
DOI	10.1021/jp0759426
通讯作者	Fu, hongbing(hongbing.fu@iccas.ac.cn)
英文摘要	The photophysical properties of a series of pi-conjugated oligothiophene-perylene bisimide dyads nt-pbi (n = 1, 2, and 3) in solutions were investigated. a sharp fluorescence quenching of the perylene bisimide moiety in these dyads nt-pbi (n = 1, 2, and 3) was observed upon photoexcitation of the perylene bisimide moiety, indicating a fast and efficient electron-transfer process. the properties of photoinduced electron transfer of these dyads nt-pbi (n = 1, 2, and 3) in solutions were investigated by time-resolved fluorescence spectra and femtosecond transient absorption spectra in the visible region. it was found that as the number of thiophene repeat units, i.e., the size, increases, the rate constants of charge separation and charge recombination increase about 3 orders and over 1 order of magnitude, respectively, because of the combined effects of energetics and electronic coupling. these results demonstrate that a change in size of donor could change and modulate the dynamics of electron transfer.
WOS关键词	PHOTOINDUCED CHARGE SEPARATION ; ORGANIC SOLAR-CELLS ; ENERGY-TRANSFER ; OLIGO(P-PHENYLENE VINYLENE) ; SUPRAMOLECULAR ASSEMBLIES ; PHOTOCHEMICAL GENERATION ; ALPHA-TERTHIENYL ; RADICAL CATIONS ; DONOR ; SYSTEMS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000253222200069
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2389565
专题	中国科学院大学
通讯作者	Fu, Hongbing
作者单位	1.Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China 2.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Huang, Jie,Fu, Hongbing,Wu, Yishi,et al. Size effects of oligothiophene on the dynamics of electron transfer in pi-conjugated oligothiophene-perylene bisimide dyads[J]. Journal of physical chemistry c,2008,112(7):2689-2696.
APA	Huang, Jie.,Fu, Hongbing.,Wu, Yishi.,Chen, Shiyan.,Shen, Fugang.,...&Yao, Jiannian.(2008).Size effects of oligothiophene on the dynamics of electron transfer in pi-conjugated oligothiophene-perylene bisimide dyads.Journal of physical chemistry c,112(7),2689-2696.
MLA	Huang, Jie,et al."Size effects of oligothiophene on the dynamics of electron transfer in pi-conjugated oligothiophene-perylene bisimide dyads".Journal of physical chemistry c 112.7(2008):2689-2696.

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