Preparation, structural and photoluminescence characteristics of novel red emitting Mg7Ga2GeO12:Mn4+ phosphor
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- 作者：Chuanqiang Wu ; Jiajia Li ; Hua Xu ; Jing Wu ; Jiachi Zhang ; zhangjch@lzu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Zhipeng Ci ; cizp@lzu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Lin Feng ; Chen Cao ; Zhiya Zhang ; Yuhua Wang
- 关键词：Mg7Ga2GeO12 ; Mn4+ ; Phosphor ; Luminescence
- 刊名：Journal of Alloys and Compounds
- 出版年：2015
- 出版时间：15 October 2015
- 年：2015
- 卷：646
- 期：Complete
- 页码：734-740
- 全文大小：1790 K
文摘
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A novel deep red emitting Mg7Ga2GeO12:Mn4+ phosphor was developed.
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Mn4+ replaces Ga3+ site in GaO6 polyhedra, leading to efficient emission of Mn4+.
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It shows bright emissions in 600–750 nm and broad excitation at around 420 nm.
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It shows a good thermal stability (78% at 250 °C of the initial intensity).
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Mg7Ga2GeO12:Mn4+ is a potential red phosphor for application in LEDs.