Effect of transition metal ion (Nb⁵⁺) doping on the luminescence properties of self-activated Ca₂AgZn₂V₃O₁₂ phosphors

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• 作者：L. Krishna Bharat ; Kurugundla Gopi Krishna ; Jae Su Yu ; ^{jsyu@khu.ac.kr}
• 关键词：Transition metal ion doping ; Red shift ; Greenish yellow phosphor ; Self-luminescence ; Vanadate
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：30 March 2017
• 年：2017
• 卷：699
• 期：Complete
• 页码：756-762
• 全文大小：2421 K
• 卷排序：699

文摘

The self-activated Ca2AgZn2V3O12 vanadate phosphor was prepared via a sol-gel method. The prepared phosphors exhibited a greenish yellow emission under UV excitation. The doping of Nb5+ ions in the vanadium site changes the luminescence properties. The red shift in the emission spectrum is due to the increase in VO bond length.