Luminescence and EPR Studies of Gd3+-Activated Strong UV-Emitting CaZrO3 Phosphors Prepared via Solution Combustion Method

被引:0
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作者
Vijay Singh
G. Sivaramaiah
J. L. Rao
S. H. Kim
机构
[1] Konkuk University,Department of Chemical Engineering
[2] Government College for Men (A),Department of Physics
[3] Sri Venkateswara University,Department of Physics
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关键词
Combustion; EPR; Gd; ions; CaZrO; photoluminescence;
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摘要
The CaZrO3:Gd3+ phosphor has been prepared by the solution combustion process. The phosphor was well characterized using x-ray diffraction, scanning electron microscopy, diffuse reflectance, electron paramagnetic resonance (EPR), and photoluminescence techniques. Upon UV light excitation (273 nm), the phosphor exhibits an ultraviolet B emission at 312 nm, which is ascribed to 6P7/2 → 8S7/2 transition of Gd3+ ions. EPR analysis of the sample confirms the presence of Gd3+ in the CaZrO3 matrix.
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页码:3486 / 3492
页数:6
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