Solvent effects on the triplet-triplet annihilation upconversion of diiodo-Bodipy and perylene
文献类型：期刊论文
| 作者 | Zhou, Qiaohui1,2; Zhou, Miaomiao3; Wei, Yaxiong1,2; Zhou, Xiaoguo1,2,4; Liu, Shilin1,2,4; Zhang, Song3; Zhang, Bing3 |
| 刊名 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS
 |
| 出版日期 | 2017 |
| 卷号 | 19期号:2页码:1516-1525 |
| 英文摘要 | Solvent effects play a very important role in photochemical reactions and energy transfer processes in solution; however, these effects are rarely mentioned in the triplet-triplet annihilation (TTA) upconversion fluorescence experiments. In a typical TTA upconversion system of a photosensitizer of diiodo-Bodipy (I-2-Bodipy) and a triplet acceptor of perylene, five common inert solvents, hexane, heptane, toluene, 1,4-dioxane, and dimethyl sulfoxide (DMSO), were used to investigate the solvent effects on the overall quantum yield of upconversion fluorescence. Femtosecond and nanosecond time-resolved transient difference absorption spectra were obtained to study the efficiencies of intersystem crossing (ISC) and triplet-triplet energy transfer (TTET). From the obtained upconversion fluorescence emission spectra, the overall TTA upconversion fluorescence quantum yield was derived. Among the five solvents, the upconversion quantum yield in dioxane is the highest at 19.16%, more than twice that that in toluene (8.75%). For the solvents hexane, heptane, toluene, and dioxane, the yields generally follow the sequences of polarity and viscosity. However, a very low upconversion quantum yield (1.51%) was observed in DMSO although the TTET process and fluorescence quantum yield of perylene in DMSO were almost as efficient as in dioxane. Based on density functional theory calculations, a reasonable explanation for these solvent effects was proposed. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical ; Physics, Atomic, Molecular & Chemical |
| 研究领域[WOS] | Chemistry ; Physics |
| 关键词[WOS] | EXCITED-STATE ; PHOTOPHYSICAL PROPERTIES ; CHARGE RECOMBINATION ; DERIVATIVES ; CHROMOPHORE ; DYES ; PHOTOSENSITIZERS ; NANOPARTICLES ; SENSITIZER ; SEPARATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000392399400063 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/9952]  |
| 专题 | 武汉物理与数学研究所_原子分子光物理研究部 |
| 作者单位 | 1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China 2.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 4.Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Qiaohui,Zhou, Miaomiao,Wei, Yaxiong,et al. Solvent effects on the triplet-triplet annihilation upconversion of diiodo-Bodipy and perylene[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2017,19(2):1516-1525. |
| APA | Zhou, Qiaohui.,Zhou, Miaomiao.,Wei, Yaxiong.,Zhou, Xiaoguo.,Liu, Shilin.,...&Zhang, Bing.(2017).Solvent effects on the triplet-triplet annihilation upconversion of diiodo-Bodipy and perylene.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,19(2),1516-1525. |
| MLA | Zhou, Qiaohui,et al."Solvent effects on the triplet-triplet annihilation upconversion of diiodo-Bodipy and perylene".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 19.2(2017):1516-1525. |
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来源：武汉物理与数学研究所
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