Enhanced electro-optic activity from the triarylaminophenyl-based chromophores by introducing heteroatoms to the donor
文献类型：期刊论文
| 作者 | 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
 |
| 出版日期 | 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 |
| WOS记录号 | WOS:000354457800024 |
| 出版者 | ROYAL SOC CHEMISTRY |
| URI标识 | http://www.irgrid.ac.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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来源：中国科学院大学
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