Title
Cathodoluminescence studies of electron irradiation effects in n-type ZnO
Abbreviated Journal Title
J. Phys.-Condes. Matter
Keywords
ENERGY; Physics, Condensed Matter
Abstract
The lifetime of non-equilibrium carriers in n-type unintentionally doped ZnO increases when the sample is exposed to the electron beam of a scanning electron microscope. This is observed by studying the ZnO cathodoluminescence (CL) spectra at different irradiation time durations and temperatures. We found that the decrease in the CL spectra's peak intensity is related to a thermo-activated energy barrier, determined by the calculated activation energy value of 259 +/- 30 meV. This energy value comes close to the defect energy level of the zinc interstitial, which is possibly the nature of the energy barrier responsible for this decrease.
Journal Title
Journal of Physics-Condensed Matter
Volume
23
Issue/Number
33
Publication Date
1-1-2011
Document Type
Article
Language
English
First Page
4
WOS Identifier
ISSN
0953-8984
Recommended Citation
"Cathodoluminescence studies of electron irradiation effects in n-type ZnO" (2011). Faculty Bibliography 2010s. 1877.
https://stars.library.ucf.edu/facultybib2010/1877
Comments
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