Solvent Effect and Two-Photon Optical Properties of Triphenylamine-Based Donor-Acceptor Fluorophores
文献类型：期刊论文
| 作者 | Zhang, Yilin1; Jiang, Meijuan2; Han, Guang-Chao3; Zhao, Ke4; Tang, Ben Zhong2; Wong, Kam Sing1 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2015-12-10 |
| 卷号 | 119期号:49页码:27630-27638 |
| 英文摘要 | In this work we present a systematic investigation on the optical properties of two triphenylamine (TPA)-based donor-acceptor fluorophores: TPA-PA (phenylaldehyde) and TPA-BMO ((Z)-4-benzylidene-2-methyloxazol-5(4H)-one). The two compounds are dissolved in nine different organic solvents as dilute solutions in order to analyze the effect of solvent on their linear and nonlinear optical properties. For each compound under one-photon excitation, its fluorescence emission spectrum red-shifts more than 160 nm as the solvent polarity increases from hexane to MeCN, while the fluorescence quantum efficiency and lifetime reach maximum magnitudes in solvents with medium polarity. The quantum efficiency reaches as high as 0.72 in dioxane for TPA-PA and 0.69 in Et2O for TPA-BMO, respectively. These TPA-PA and TPA-BMO solutions are also strongly emissive upon appropriate two photon excitation, with fluorescence emission spectra identical to those under corresponding one-photon excitation. The maximum two-photon absorption cross sections are similar to 160 GM (Goeppert-Mayer units) and 250 GM for TPA-PA and TPA-BMO, respectively, regardless of the solvent identity. Particularly, for TPA-BMO solutions in strongly polar solvents, dual fluorescence peaks are observed in steady state, and distinct relaxation dynamics are detected in fluorescence decays for the two emission peaks. These dual fluorescence emission spectra and dynamics could be interpreted as signs of charge-transfer state formation. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/29430]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong 999077, Hong Kong, Peoples R China 2.Hong Kong Univ Sci & Technol, Chinese Natl Engn Res Ctr Tissue Restorat & Recon, HKUST Jockey Club Inst Adv Study,Inst Mol Funct M, Div Biomed Engn,State Key Lab Mol Neurosci,Div Li, Kowloon 999077, Hong Kong, Peoples R China 3.Chinese Acad Sci, Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China 4.Shandong Normal Univ, Coll Phys & Elect, Jinan 250014, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yilin,Jiang, Meijuan,Han, Guang-Chao,et al. Solvent Effect and Two-Photon Optical Properties of Triphenylamine-Based Donor-Acceptor Fluorophores[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2015,119(49):27630-27638. |
| APA | Zhang, Yilin,Jiang, Meijuan,Han, Guang-Chao,Zhao, Ke,Tang, Ben Zhong,&Wong, Kam Sing.(2015).Solvent Effect and Two-Photon Optical Properties of Triphenylamine-Based Donor-Acceptor Fluorophores.JOURNAL OF PHYSICAL CHEMISTRY C,119(49),27630-27638. |
| MLA | Zhang, Yilin,et al."Solvent Effect and Two-Photon Optical Properties of Triphenylamine-Based Donor-Acceptor Fluorophores".JOURNAL OF PHYSICAL CHEMISTRY C 119.49(2015):27630-27638. |
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来源：化学研究所
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