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Abstract The luminescence characteristics of Eu3+ doped Y2O3 in the presence and absence of Bi3+/Ga3+ trace ions prepared by the sol-gel combustion method were investigated. The results revealed that, the… Click to show full abstract
Abstract The luminescence characteristics of Eu3+ doped Y2O3 in the presence and absence of Bi3+/Ga3+ trace ions prepared by the sol-gel combustion method were investigated. The results revealed that, the Bi3+ and Ga3+ ions have a significant influence on the excitation position and emission bands intensity of Eu3+ doped Y2O3. The cathodoluminescence (CL) intensity of the Y2O3:Eu3+ incorporated with Bi3+/Ga3+ ions has been considerably enhanced (five times), compared to the CL intensity of the unincorporated Y2O3:Eu3+ samples. This phenomenon was attributed to the energy exchange in the excitation bands of the Bi3+ and Eu3+ ions.
Journal Title: Vacuum
Year Published: 2018
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