Changchun Institute of Optics,Fine Mechanics and Physics,CAS
Pressure-dependent photoluminescence of ZnO nanosheets | |
其他题名 | 论文其他题名 |
Chen S. J.; Liu Y. C.; Shao C. L.; Xu C. S.; Liu Y. X.; Wang L.; Liu B. B.; Zou G. T. | |
2005 | |
发表期刊 | Journal of Applied Physics |
ISSN | 0021-8979 |
卷号 | 98期号:10 |
摘要 | Photoluminescence and Raman spectra of ZnO single-crystal nanosheets have been studied as a function of applied hydrostatic pressure using the diamond-anvil-cell technique at room temperature. The ZnO nanosheets synthesized via a vapor transport process have uniform plane surfaces with lateral dimensions up to several microns and thickness of similar to 100 nm. In terms of Raman results, the ZnO nanosheets underwent a transition from wurtzite to rock-salt structure with an increase of pressure, and the phase-transition pressure was measured to be about 11.2 GPa. However, a strong near-band-edge UV emission of ZnO nanosheets was observed with the applied pressure up to 20.0 GPa. Simultaneously, the emission peak shifted to higher-energy side with increasing pressure. By examining the dependence of the near-band-edge emission peak on the applied pressure, the pressure coefficient of the direct Gamma band gap in the wurtzite ZnO nanosheets was determined. (c) 2005 American Institute of Physics. |
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/181722/26787 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 GB/T 7714 | Chen S. J.,Liu Y. C.,Shao C. L.,et al. Pressure-dependent photoluminescence of ZnO nanosheets[J]. Journal of Applied Physics,2005,98(10). |
APA | Chen S. J..,Liu Y. C..,Shao C. L..,Xu C. S..,Liu Y. X..,...&Zou G. T..(2005).Pressure-dependent photoluminescence of ZnO nanosheets.Journal of Applied Physics,98(10). |
MLA | Chen S. J.,et al."Pressure-dependent photoluminescence of ZnO nanosheets".Journal of Applied Physics 98.10(2005). |
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