Rotational reorientation dynamics of Rhodamine 700 in different excited states
文献类型：期刊论文
| 作者 | Zhou, Panwang1,2; Liu, Jianyong1; Song, Peng1,2; Han, Keli1; He, Guozhong1 |
| 刊名 | journal of luminescence
 |
| 出版日期 | 2009-03-01 |
| 卷号 | 129期号:3页码:283-289 |
| 关键词 | Rotational reorientation Rhodamine 700 Stimulated emission pumping fluorescence depletion spectroscopy Internal conversion Femtosecond |
| 英文摘要 | the rotational reorientation dynamics of rhodamine 700 (ld700) in the first (s(1)) and the fifth (s(5)) excited state in three aprotic polar solvents have been investigated using femtosecond time-resolved stimulated emission pumping fluorescence depletion (fs tr sep td) spectroscopy. in both excited states, the overall rotational relaxation of ld700 occurs on a time scale of 40-230 ps depending on the solvent, and a quantitative analysis of this time constant has been performed using the stokes-einstein-debye (sed) hydrodynamic theory combined with the extended charge distribution model developed by alavi and waldeck. the experimentally measured reorientation times for ld700 in s(5) are smaller than those in s(1), which is in accord with the predictions by the sed theory. in addition, for ld700 in s(5), a rapid initial decrease on the time scale less than 0.5 ps has been found. according to our analysis, this fast component may account for the rapid internal conversion from s(5) to s(1), and the rate of internal conversion was found to be sensitive to the solvent polarity. (c) 2008 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | optics |
| 研究领域[WOS] | optics |
| 关键词[WOS] | dielectric friction models ; electrolyte-solutions ; molecular rotation ; polar-solvents ; pyrrolopyrrole derivatives ; charge-distribution ; chemical molecules ; boundary-condition ; nondipolar probes ; phenoxazine dyes |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000262884400021 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141423]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Panwang,Liu, Jianyong,Song, Peng,et al. Rotational reorientation dynamics of Rhodamine 700 in different excited states[J]. journal of luminescence,2009,129(3):283-289. |
| APA | Zhou, Panwang,Liu, Jianyong,Song, Peng,Han, Keli,&He, Guozhong.(2009).Rotational reorientation dynamics of Rhodamine 700 in different excited states.journal of luminescence,129(3),283-289. |
| MLA | Zhou, Panwang,et al."Rotational reorientation dynamics of Rhodamine 700 in different excited states".journal of luminescence 129.3(2009):283-289. |
入库方式： OAI收割
来源：大连化学物理研究所
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