| Luminescent Properties and Mechanism of Gd1-x-yAlO3Eux,REy |
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| 作者姓名： | 罗岚 刘庆峰 刘茜 |
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| 作者单位： | [1]SchoolofMaterialScienceandEngineering,NanchangUniversity,Nanchang330047／／＂StateKeyLaboratoryofHighPerformanceCeramicsandSuperfineMicrostructure,ShanghaiInstituteofCeramics,ChineseAcademyofSciences,Shanghai200050 [2]StateKeyLaboratoryofHighPerformanceCeramicsandSuperfineMicrostructure,~hanghaiInstituteotC＇eramics,ChineseAcademyofSciences,Shanghai200050 |
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| 摘 要： | GAP:Eu,Re(Gd1-x-yAlO3Eux,REy?A，RE=Pr or Ce) powders were prepared by a nitrate-citrate process. It is found that luminescent intensity decreases when GAP:Eu is co-doped with Pr or Ce. The phenomena of spectra prove that there is a resonant energy transfer between Eu and Pr, by the absorption and emission of lower-energy phonon, and also Ce sensitizer decreases the activator energy level from host→Eu. The two factors are considered to be the main reasons for decrease of the luminescent intensity for the co-doped GAP:Eu,Re.
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| 关 键 词： | 发光性质 力学性质 硝酸盐-柠檬酸盐处理 能量转化 |
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