Synthesis and optical studies of novel Eu²⁺ and Ce³⁺ doped BaMg₈Al₁₈Si₁₈O₇₂ phosphors

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• 作者：V.B. Pawade^a ; ^{vijaypawade003@gmail.com} ; N.S. Dhoble^b ; S.J. Dhoble^c
• 关键词：Combustion synthesis ; Phosphors ; Optical properties ; W-leds ; Scintillators
• 刊名：Solid State Sciences
• 出版年：2012
• 期刊代码：98_12932558
• 类别：ch
• 出版时间：May, 2012
• 卷：14
• 期：5
• 页码：607-610
• 文件大小：756 K

摘要

Novel Eu²⁺ and Ce³⁺ activated BaMg₈Al₁₈Si₁₈O₇₂ phosphors was prepared by combustion method and their PL characteristics were investigated. The result shows that all samples can be excited efficiently by near UV excitation under 334聽nm and 316聽nm. The emission was observed for BaMg₈Al₁₈Si₁₈O₇₂:Eu²⁺ phosphor at 437聽nm corresponding to d聽鈫捖爁 transition, under 334聽nm broad-band excitation, whereas BaMg₈Al₁₈Si₁₈O₇₂:Ce³⁺ phosphor shows emission band at 376聽nm under 316聽nm excitation. Phase purity of the phosphor was checked with the help of XRD pattern. SEM analysis shows the external morphology of the combustion synthesized phosphor.