Time-resolved photoluminescence characteristics of subnanometer ZnO clusters confined in the micropores of zeolites
文献类型：期刊论文
| 作者 | Shi, Jianying; Chen, Jun; Feng, Zhaochi; Chen, Tao; Wang, Xiuli; Ying, Pinliang; Li, Can |
| 刊名 | journal of physical chemistry b
 |
| 出版日期 | 2006-12-28 |
| 卷号 | 110期号:51页码:25612-25618 |
| 通讯作者 | 李灿 |
| 产权排序 | 1;1 |
| 英文摘要 | subnanometric zno clusters confined in different micropore zeolites are studied by steady-state and nanosecond time-resolved photoluminescence (pl) spectroscopy. the microsecond-scale lifetime is observed at room temperature for zno clusters confined in zeolites, which is significantly different from that of macrocrystalline zno on the external surface of zeolites. the dependence of luminescence lifetime on the amount of zno in zeolites indicates that the electron-phonon interactions between the zno clusters and the zeolite host significantly affect the dynamic relaxation process of zno clusters. the long lifetime luminescence of zno clusters can be achieved by weakening the coupling of electronic transition to zeolites host phonons. the similar long-lived luminescence is obtained when dispersing zno clusters into the porous sio2. it is suggested that encapsulating the semiconductor cluster in the porous support is a possible way to inhibit or to retard the electron-hole recombination. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | zinc-oxide ; relaxation dynamics ; electronic state ; size dependence ; luminescence ; particles ; photochemistry ; crystallites ; photophysics ; excitons |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000242974300015 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/98359]  |
| 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 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Jianying,Chen, Jun,Feng, Zhaochi,et al. Time-resolved photoluminescence characteristics of subnanometer ZnO clusters confined in the micropores of zeolites[J]. journal of physical chemistry b,2006,110(51):25612-25618. |
| APA | Shi, Jianying.,Chen, Jun.,Feng, Zhaochi.,Chen, Tao.,Wang, Xiuli.,...&Li, Can.(2006).Time-resolved photoluminescence characteristics of subnanometer ZnO clusters confined in the micropores of zeolites.journal of physical chemistry b,110(51),25612-25618. |
| MLA | Shi, Jianying,et al."Time-resolved photoluminescence characteristics of subnanometer ZnO clusters confined in the micropores of zeolites".journal of physical chemistry b 110.51(2006):25612-25618. |
入库方式： OAI收割
来源：大连化学物理研究所
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