Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Photoluminescence characteristics of ZnO clusters confined in the micropores of zeolite L | |
其他题名 | 论文其他题名 |
Wang F.; Song H. W.; Pan G. H.; Fan L. B.; Dai Q. L.; Dong B. A.; Liu H. H.; Yu J. H.; Wang X.; Li L.![]() | |
2009 | |
发表期刊 | Materials Research Bulletin
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ISSN | 0025-5408 |
卷号 | 44期号:3页码:600-605 |
摘要 | Sub-nanometric ZnO clusters were prepared in the micropores of zeolite L by the incipient wetness impregnation method. The X-ray patterns (XRD), transmission electron microscope (TEM), N(2) adsorption-desorption isotherms, UV-vis absorption spectra (UV-vis) and photoluminescence spectra (PL) were used to characterize the composite materials. The results indicate that a small amount of subnanometric ZnO clusters can be introduced into the channel of zeolite L, however, when the amount of ZnO loading exceeds 20 wt%, macrocrystalline ZnO appears on the external surface of zeolite L. Different from bulk ZnO materials, these sub-nanometric ZnO clusters exhibit their absorption onset below 255 nm and a blue luminescence band in the range of 404-422 nm. The temperature-dependent luminescence demonstrates that the amount of the ZnO loading significantly affects the exciton-phonon interaction between the ZnO clusters and the zeolite host. The ZnO clusters exhibit a picosecond scale emission lifetime at room temperature. (C) 2008 Elsevier Ltd. All rights reserved. |
收录类别 | SCI ; EI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/26278 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Wang F.,Song H. W.,Pan G. H.,et al. Photoluminescence characteristics of ZnO clusters confined in the micropores of zeolite L[J]. Materials Research Bulletin,2009,44(3):600-605. |
APA | Wang F..,Song H. W..,Pan G. H..,Fan L. B..,Dai Q. L..,...&Li L..(2009).Photoluminescence characteristics of ZnO clusters confined in the micropores of zeolite L.Materials Research Bulletin,44(3),600-605. |
MLA | Wang F.,et al."Photoluminescence characteristics of ZnO clusters confined in the micropores of zeolite L".Materials Research Bulletin 44.3(2009):600-605. |
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