Pressure response of the ultraviolet photoluminescence of ZnO and MgZnO nanocrystallites

被引：25
作者：
Huso, Jesse
Morrison, John L.
Hoeck, Heather
Chen, Xiang-Bai
Bergman, Leah [1 ]
Jokela, S. J.
McCluskey, M. D.
Zheleva, Tsvetanka
机构：
[1] Univ Idaho, Dept Phys, Moscow, ID 83844 USA
[2] Washington State Univ, Dept Phys, Pullman, WA 99164 USA
[3] USA, Res Lab, Adelphi, MD 20783 USA
来源：
APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 17期
关键词：
D O I：
10.1063/1.2369917
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The pressure response of the ultraviolet photoluminescence of ZnO nanocrystallites and MgZnO nanoalloy of composition 15% Mg:85% Zn of the wurtzite structure was studied. The authors found that up to 7 GPa the pressure coefficients of ZnO and MgZnO are 23.6 and 27.1 meV/GPa, respectively. The pressure coefficient of the ZnO nanocrystallites is similar to that reported elsewhere for bulk ZnO material. The higher value found for MgZnO is discussed in terms of the d orbitals of the alloy constituents and their compliance to stress. Additionally, the volume deformation potential was derived from the experimental results. (c) 2006 American Institute of Physics.
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