Enhancement of two-photon absorption cross section and singlet-oxygen generation in porphyrin-cored star polymers
文献类型：期刊论文
| 作者 | Wan Yan1,2; Jia Ke1,2; Li BinSong2,3; Bo ZhiShan2,3; Xia AnDong1,2 |
| 刊名 | SCIENCE IN CHINA SERIES B-CHEMISTRY
 |
| 出版日期 | 2009 |
| 卷号 | 52期号:1页码:56-63 |
| 关键词 | Porphyrin-cored Star Polymer Two-photon Excitation Energy Transfer |
| ISSN号 | 1006-9291 |
| DOI | 10.1007/s11426-008-0157-6 |
| 英文摘要 | We report a newly synthesized polymer of a star-shaped porphyrin compound (TPA-FxP) with four oligofluorene arms at its meso positions with the pronounced enhancement of the two-photon properties and the generation of singlet oxygen by utilizing the two-photon excited fluorescence resonance energy transfer. The steady-state spectra and transient triplet-triplet absorption spectra give evidence that the enhanced two-photon absorption cross section results from not only the through-space energy transfer (Forster) but also the through-bond energy transfer between conjugated peripheral oligofluorene arms and the porphyrin core. The two-photon absorption cross section at 780 nm up to 3360 GM (1 GM = 10(-50) cm(4)center dot s/photon) of TPA-FxP was obtained, which is comparable to the highest values reported from other similar chemically modified porphyrin core compounds. Furthermore, the enhanced production of singlet oxygen under two-photon absorption conditions is also reported. |
| 语种 | 英语 |
| WOS记录号 | WOS:000262439700008 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67683]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Xia AnDong |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wan Yan,Jia Ke,Li BinSong,et al. Enhancement of two-photon absorption cross section and singlet-oxygen generation in porphyrin-cored star polymers[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,2009,52(1):56-63. |
| APA | Wan Yan,Jia Ke,Li BinSong,Bo ZhiShan,&Xia AnDong.(2009).Enhancement of two-photon absorption cross section and singlet-oxygen generation in porphyrin-cored star polymers.SCIENCE IN CHINA SERIES B-CHEMISTRY,52(1),56-63. |
| MLA | Wan Yan,et al."Enhancement of two-photon absorption cross section and singlet-oxygen generation in porphyrin-cored star polymers".SCIENCE IN CHINA SERIES B-CHEMISTRY 52.1(2009):56-63. |
入库方式： OAI收割
来源：化学研究所
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