Internal energy transfer phenomenon and light-emission properties of γ-LiAlO2 phosphor doped with Mn2+ |
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| Authors: | Bai-Bin Wang Chi-Fen Chang Wein-Duo Yang |
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| Institution: | 1783. Department of Chemical and Materials Engineering, Kaohsiung University of Applied Sciences, Kaohsiung, 80778, China Taipei
2783. Electronics Testing Center, Taoyuan, 33383, China Taipei
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| Abstract: | 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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