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	Enhanced electro-optic activity from the triarylaminophenyl-based chromophores by introducing heteroatoms to the donor
	Yang, Yuhui1,2; Liu, Fenggang1,2; Wang, Haoran1,2; Bo, Shuhui1; Liu, Jialei1; Qiu, Ling1; Zhen, Zhen1; Liu, Xinhou1
刊名	Journal of materials chemistry c
	2015
卷号	3期号:20页码:5297-5306
ISSN号	2050-7526
DOI	10.1039/c5tc00723b
通讯作者	Liu, xinhou(xinhouliu@foxmail.com)
英文摘要	A series of chromophores t1-t3 based on the same thiophene pi-conjugation and tricyanofuran acceptor (tcf) but with different heteroatoms in the triarylaminophenyl (taa) donors have been synthesized and systematically investigated in this study. density functional theory (dft) was used to calculate the homo-lumo energy gaps and first-order hyperpolarizability (beta) of these chromophores. moreover, to determine the redox properties of these chromophores, cyclic voltammetry (cv) experiments were performed. after introducing the heteroatom to the benzene ring of the taa donor, reduced energy gaps of 1.28 and 0.84 ev were obtained for chromophores t2 and t3, respectively, which was much lower than for chromophore t1 (delta e = 1.46 ev). these chromophores showed excellent thermal stability with their decomposition temperatures all above 280 degrees c. compared with results obtained from the chromophore without the heteroatom (t1), these new chromophores show better intramolecular charge-transfer (ict) absorption. most importantly, the high molecular hyperpolarizability (beta) of these chromophores can be effectively translated into large electro-optic (eo) coefficients (r(33)) in the poled polymers. the electro-optic coefficient of poled films containing 25 wt% of these new chromophores doped in amorphous polycarbonate (apc) afforded values of 16, 58 and 95 pm v-1 at 1310 nm for chromophores t1-t3, respectively. high r(33) values indicated that introducing heteroatom to the benzene ring of the taa donor can efficiently improve the electron-donating ability, which improves the hyperpolarizability (beta). the long-chain on the benzene ring of the taa donor, acting as the isolation group, may reduce intermolecular electrostatic interactions, thus enhancing the macroscopic eo activity. these properties, together with the good solubility, suggest the potential use of these new chromophores as advanced material devices.
WOS关键词	NONLINEAR-OPTICAL CHROMOPHORES ; THEORY-GUIDED DESIGN ; HIGHLY EFFICIENT ; DENDRIMERS ; PROPERTY ; POLYMERS ; COEFFICIENT ; DERIVATIVES ; COPOLYMERS ; MOLECULES
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000354457800024
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2376506
专题	中国科学院大学
通讯作者	Liu, Xinhou
作者单位	1.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100043, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yuhui,Liu, Fenggang,Wang, Haoran,et al. Enhanced electro-optic activity from the triarylaminophenyl-based chromophores by introducing heteroatoms to the donor[J]. Journal of materials chemistry c,2015,3(20):5297-5306.
APA	Yang, Yuhui.,Liu, Fenggang.,Wang, Haoran.,Bo, Shuhui.,Liu, Jialei.,...&Liu, Xinhou.(2015).Enhanced electro-optic activity from the triarylaminophenyl-based chromophores by introducing heteroatoms to the donor.Journal of materials chemistry c,3(20),5297-5306.
MLA	Yang, Yuhui,et al."Enhanced electro-optic activity from the triarylaminophenyl-based chromophores by introducing heteroatoms to the donor".Journal of materials chemistry c 3.20(2015):5297-5306.

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