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题名: Pressure dependence of the near-band-edge photoluminescence from ZnO microrods at low temperature
作者: Su FH (Su Fu Hai);  Wang WJ (Wang Wen Jie);  Ding K (Ding Kun);  Li GH (Li Guo Hua);  Liu YF (Liu Yuangfang);  Joly AG (Joly Alan G.);  Chen W (Chen Wei)
发表日期: 2006
摘要: The temperature and pressure dependences of band-edge photo luminescence from ZnO microrods have been investigated. The energy separation between the free exciton (FX) and its first order phonon replica (FX-1LO) decreases at a rate of k(B)T with increasing temperature. The intensity ratio of the FX-1LO to the bound exciton (BX) emission is found to decrease slightly with increasing pressure. All of the exciton emission peaks show a blue shift with increasing pressure. The pressure coefficient of the FX transition, longitudinal optical (LO) phonon energy, and binding energy of BX are estimated to be 21.4, 0.5, and 0.9 meV/GPa, respectively. (c) 2006 Elsevier Ltd. All rights reserved.
KOS主题词: Luminescence;  Phonon;  Optical properties;  Exciton;  Nanowires;  Aluminum oxide;  Development
刊名: JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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Su FH (Su Fu Hai); Wang WJ (Wang Wen Jie); Ding K (Ding Kun); Li GH (Li Guo Hua); Liu YF (Liu Yuangfang); Joly AG (Joly Alan G.); Chen W (Chen Wei) .Pressure dependence of the near-band-edge photoluminescence from ZnO microrods at low temperature ,JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,2006,67(11):2376-2381
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