Abbreviated Journal Title
Appl. Phys. Lett.
Keywords
OPTICAL-PROPERTIES; LUMINESCENCE; SAPPHIRE; MEMBRANES; EMISSION; DEFECTS; FILMS; AL2O3; Physics, Applied
Abstract
The photoluminescence (PL) behavior of gamma-Al2O3 nanopowder is studied. Two emission peaks at 343 and 378 nm and a broadband ranging between 400 and 600 nm are observed. The peaks are attributed to F+ center, while the broadband is attributed to impurities. It is found that irradiating the sample with intense ultraviolet (UV) light can cause significant decrease in the intensity of the two peaks, but has no effect on the broadband. A simple model is proposed to explain the kinetics of UV irradiation-induced PL degradation.
Journal Title
Applied Physics Letters
Volume
89
Issue/Number
5
Publication Date
1-1-2006
Document Type
Article
DOI Link
Language
English
First Page
3
WOS Identifier
ISSN
0003-6951
Recommended Citation
Liu, Sufeng; Zhang, Ligong; Fan, Yi; Luo, Jinsong; Zhang, Peiping; and An, Linan, "Ultraviolet irradiation-induced photoluminescence degradation in gamma-alumina nanoparticles" (2006). Faculty Bibliography 2000s. 6370.
https://stars.library.ucf.edu/facultybib2000/6370
Comments
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