Photoinduced electron transfer from the excited J-aggregate state of a thiacarbocyanine dye to TiO2 colloids
文献类型：期刊论文
| 作者 | Xiang, JF; Chen, CP; Chen, ZW; Yan, WP; Ai, XC; Liu, Y; Xu, GZ |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2002-10-01 |
| 卷号 | 254期号:1页码:195-199 |
| 关键词 | Photoinduced Electron Transfer Cyanine Dye J-aggregate Semiconductor |
| ISSN号 | 0021-9797 |
| DOI | 10.1006/jcis.2002.8566 |
| 英文摘要 | The photophysical properties of the J-aggregate of 3,3'-di(3-sulfopropyl)-4,5,4',5'-dibenzo-9-phenyl-thiacarbocyanine triethylammonium salt in the absence and presence of TiO2 colloids have been studied using UV-visible absorption spectroscopy, steady-state and time-resolved fluorescence spectroscopy, and ESR spectroscopy. The fluorescence emission of the J-aggregate decreases with increasing concentration of TiO2 colloids. The average fluorescence lifetime of the J-aggregate in the presence of TiO2 colloids is shorter than that in the absence of TiO2 colloids. A strong photoinduced ESR signal has been observed during illumination by light with lambda = 633 nm in the presence of TiO2 and the ESR signal can be attributed to the J-aggregate radical cation. From the above results, it is concluded that photoinduced electron transfer from the excited singlet state of the J-aggregate to the conduction band of TiO2 takes place and the electron transfer rate is about 1.5 x 10(8) s(-1). (C) 2002 Elsevier Science (USA). |
| 语种 | 英语 |
| WOS记录号 | WOS:000178514400025 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/79423]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Xu, GZ |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiang, JF,Chen, CP,Chen, ZW,et al. Photoinduced electron transfer from the excited J-aggregate state of a thiacarbocyanine dye to TiO2 colloids[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2002,254(1):195-199. |
| APA | Xiang, JF.,Chen, CP.,Chen, ZW.,Yan, WP.,Ai, XC.,...&Xu, GZ.(2002).Photoinduced electron transfer from the excited J-aggregate state of a thiacarbocyanine dye to TiO2 colloids.JOURNAL OF COLLOID AND INTERFACE SCIENCE,254(1),195-199. |
| MLA | Xiang, JF,et al."Photoinduced electron transfer from the excited J-aggregate state of a thiacarbocyanine dye to TiO2 colloids".JOURNAL OF COLLOID AND INTERFACE SCIENCE 254.1(2002):195-199. |
入库方式： OAI收割
来源：化学研究所
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