Internal energy transfer phenomenon and light-emission properties of γ-LiAlO2 phosphor doped with Mn2+
来源期刊：International Journal of Minerals Metallurgy and Materials2013年第7期
论文作者：Bai-Bin Wang Wein-Duo Yang
文章页码：678 - 683
摘 要：γ-LiAlO2:Mn2+ phosphor was synthesized using the cellulose-citric acid sol-gel method, and its light emission and energy transfer properties were investigated. Excitation and emission spectrum analysis revealed a decrease in intensity of the spectrum as the amount of Mn2+ doping increased. Blasse’s equation determined the maximum distance for energy transfer between Mn2+ ions as 4.3142 nm. Dexter’s theory verifies that the mechanism of energy transfer between Mn2+ ions conforms to an electric dipole and electric quadrupole interaction.
Bai-Bin Wang1，Wein-Duo Yang1
1. Department of Chemical and Materials Engineering, Kaohsiung University of Applied Sciences
摘 要：γ-LiAlO2:Mn2+ phosphor was synthesized using the cellulose-citric acid sol-gel method, and its light emission and energy transfer properties were investigated. Excitation and emission spectrum analysis revealed a decrease in intensity of the spectrum as the amount of Mn2+ doping increased. Blasse’s equation determined the maximum distance for energy transfer between Mn2+ ions as 4.3142 nm. Dexter’s theory verifies that the mechanism of energy transfer between Mn2+ ions conforms to an electric dipole and electric quadrupole interaction.
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