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 |
| 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. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | light-emitting materials ; photodynamic therapy ; energy-transfer ; resonance enhancement ; self-assemblies ; quantum yields ; free-base ; excitation ; chromophores ; derivatives |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000262439700008 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141491]  |
| 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, 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：大连化学物理研究所
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