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Blue photoluminescence in ZnGa{sub 2}O{sub 4} thin-film phosphors

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.1287228· OSTI ID:40204918

The growth and properties of luminescent ZnGa{sub 2}O{sub 4} thin films using pulsed laser ablation has been investigated. As-deposited films on glass and (100) MgO substrates exhibit blue-white photoluminescence with a broad emission band under ultraviolet excitation. In situ epitaxial films obtained on single crystal (100) MgO substrates possess enhanced luminescent intensity as compared to polycrystalline films on glass substrates. The enhanced luminescence in epitaxial films presumably reflects lower defect densities due to growth on low energy surfaces.

Sponsoring Organization:
(US)
OSTI ID:
40204918
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 3 Vol. 89; ISSN 0021-8979
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English