Photoluminescence of ZnS clusters in zeolite-Y
文献类型：期刊论文
| 作者 | Chen W ; Wang ZG ; Lin ZJ ; Xu Y ; Lin LY |
| 刊名 | journal of materials science & technology
 |
| 出版日期 | 1997 |
| 卷号 | 13期号:5页码:397-404 |
| 关键词 | OPTICAL-PROPERTIES COLLOIDAL SEMICONDUCTORS EXCITATION SPECTROSCOPY QUANTUM CONFINEMENT CDS PARTICLES PHOTOCHEMISTRY CRYSTALLITES FLUORESCENCE ELECTRON SPECTRA |
| ISSN号 | 1005-0302 |
| 通讯作者 | chen w chinese acad sciinst semicondlab semicond mat scibeijing 100083peoples r china. |
| 中文摘要 | two obvious emissions are observed from the zns clusters encapsulated in zeolite-y. the emission around 355 nm is sharp and weak, locating at the onset of the absorption edge. the band around 535 nm is broad, strong and stokes-shifted. both the two emissions shift to blue and their intensities firstly increase then decrease as the loading of zns in zeolite-y or clusters size decreases. through investigation, the former is attributed to the excitonic fluorescence, and the latter to the trapped luminescence from surface states. the cluster size-dependence of the luminescence may be explained qualitatively by considering both the carrier recombination and the nonradiative recombination rates. four peaks appearing in the excitation spectra are assigned to the transitions of 1s-1s, 1s-1p, 1s-1d and surface state, respectively. the excitation spectra of the clusters do not coincide with their absorption spectra. the states splitted by quantum-size confinement are detected in the excitation spectra, but could not be differentiated in the optical absorption spectra due to inhomogeneous broadening. the size-dependence of the excitation spectra is similar to that of the absorption spectra. both the excitation spectra of excitonic and of trapped emissions are similar, but change in relative intensity and shift in position are observed. |
| 学科主题 | 半导体材料 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2010-11-17 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/15139]  |
| 专题 | 半导体研究所_中国科学院半导体研究所（2009年前） |
| 推荐引用方式 GB/T 7714 | Chen W,Wang ZG,Lin ZJ,et al. Photoluminescence of ZnS clusters in zeolite-Y[J]. journal of materials science & technology,1997,13(5):397-404. |
| APA | Chen W,Wang ZG,Lin ZJ,Xu Y,&Lin LY.(1997).Photoluminescence of ZnS clusters in zeolite-Y.journal of materials science & technology,13(5),397-404. |
| MLA | Chen W,et al."Photoluminescence of ZnS clusters in zeolite-Y".journal of materials science & technology 13.5(1997):397-404. |
入库方式： OAI收割
来源：半导体研究所
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