Pressure response of the ultraviolet photoluminescence of ZnO and MgZnO nanocrystallites

Pressure response of the ultraviolet photoluminescence of ZnO and MgZnO nanocrystallites

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 7GPa the pressure coefficients of ZnO and MgZnO are 23.6 and 27.1meV∕GPa, respectively. The pressure...

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Bibliographic Details
Published in:Applied physics letters Vol. 89; no. 17
Main Authors: Huso, Jesse, Morrison, John L., Hoeck, Heather, Chen, Xiang-Bai, Bergman, Leah, Jokela, S. J., McCluskey, M. D., Zheleva, Tsvetanka
Format: Journal Article
Language:English
Published: 23-10-2006
Online Access:Get full text
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Summary: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 7GPa the pressure coefficients of ZnO and MgZnO are 23.6 and 27.1meV∕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.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2369917