Pd-Porphyrin Oligomers Sensitized for Green-to-Blue Photon Upconversion: The More the Better?
文献类型：期刊论文
| 作者 | Xun, Zhiqing1; Zeng, Yi1; Chen, Jinping1; Yu, Tianjun1; Zhang, Xiaohui1; Yang, Guoqiang2; Li, Yi1 |
| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 2016-06-13 |
| 卷号 | 22期号:25页码:8654-8662 |
| 关键词 | energy transfer light harvesting sensitizers triplet-triplet annihilation upconversion |
| 英文摘要 | A series of directly meso-meso-linked Pd-porphyrin oligomers (PdDTP-M, PdDTP-D, and PdDTP-T) have been prepared. The absorption region and the light-harvesting ability of the Pd-porphyrin oligomers are broadened and enhanced by increasing the number of Pd-porphyrin units. Triplet-triplet annihilation upconversion (TTA-UC) systems were constructed by utilizing the Pd-porphyrin oligomers as the sensitizer and 9,10-diphenylanthracene (DPA) as the acceptor in deaerated toluene and green-to-blue photon upconversion was observed upon excitation with a 532 nm laser. The triplet-triplet annihilation upconversion quantum efficiencies were found to be 6.2 %, 10.5 %, and 1.6% for the [PdDTP-M]/DPA, [PdDTP-D]/DPA, and [PdDTP-T]/DPA systems, respectively, under an excitation power density of 500 m Wcm(-2). The photophysical processes of the TTA-UC systems have been investigated in detail. The higher triplet-triplet annihilation upconversion quantum efficiency observed in the [PdDTP-D]/DPA system can be rationalized by the enhanced light-harvesting ability of PdDTP-D at 532 nm. Under the same experimental conditions, the [PdDTP-D]/DPA system produces more 3DPA* than the other two TTA-UC systems, benefiting the triplet-triplet annihilation process. This work provides a useful way to develop efficient TTA-UC systems with broad spectral response by using Pd-porphyrin oligomers as sensitizers. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/35194]  |
| 专题 | 化学研究所_光化学实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Photochem Convers & Optoelect Mat, Tech Inst Phys & Chem, Chinese Acad Sci Univ, Beijing 100190, Peoples R China 2.Chinese Acad Sci, BNLMS, Key Lab Photochem, Inst Chem,Chinese Acad Sci Univ, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xun, Zhiqing,Zeng, Yi,Chen, Jinping,et al. Pd-Porphyrin Oligomers Sensitized for Green-to-Blue Photon Upconversion: The More the Better?[J]. CHEMISTRY-A EUROPEAN JOURNAL,2016,22(25):8654-8662. |
| APA | Xun, Zhiqing.,Zeng, Yi.,Chen, Jinping.,Yu, Tianjun.,Zhang, Xiaohui.,...&Li, Yi.(2016).Pd-Porphyrin Oligomers Sensitized for Green-to-Blue Photon Upconversion: The More the Better?.CHEMISTRY-A EUROPEAN JOURNAL,22(25),8654-8662. |
| MLA | Xun, Zhiqing,et al."Pd-Porphyrin Oligomers Sensitized for Green-to-Blue Photon Upconversion: The More the Better?".CHEMISTRY-A EUROPEAN JOURNAL 22.25(2016):8654-8662. |
入库方式： OAI收割
来源：化学研究所
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