Strain-Induced Enhancement of Eu3+ Emission in Red Phosphor NaMgPO4:Eu3+, Al3+
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- 作者：Yong Gao ; Qiwei Long ; Rong Nong ; Tianman Wang…
- 关键词：Inorganic compounds ; optical materials ; chemical synthesis ; luminescence ; optical properties
- 刊名：Journal of Electronic Materials
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：46
- 期：2
- 页码：911-916
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials; Electronics and Microelectronics, Instrumentation; Solid State Physics;
- 出版者：Springer US
- ISSN：1543-186X
- 卷排序：46
文摘
A series of (NaMgPO4)0.98−x: \({\hbox{Eu}}_{0.02}^{3 + }\), \({\hbox{Al}}_{x}^{3 + }\) phosphors were prepared by the solid-state method. X-ray powder diffraction results confirm that the samples contain mixture phases of crystals. The doped effect of Al3+ on the photoluminescence properties of (NaMgPO4)0.98−x: \({\hbox{Eu}}_{0.02}^{3 + }\), \({\hbox{Al}}_{x}^{3 + }\) phosphors is discussed. The results indicate that two dependent curves of emission relative intensity and strain on Al3+ doping concentration are all Gaussian curves, and a high correlation is observed between emission relative intensity of Eu3+ and strain caused by Al3+. In other words, emission relative intensity of Eu3+ is enhanced with the increase of the strain. The enhanced mechanism of the strain is discussed. In addition, (NaMgPO4)0.98−x: \({\hbox{Eu}}_{0.02}^{3 + }\), \({\hbox{Al}}_{x}^{3 + }\) phosphors are electric dipole-dominated transition red phosphors. The optimal molar concentration of Al3+ for the samples is 9%, which (NaMgPO4)0.89: \({\hbox{Eu}}_{0.02}^{3 + }\), \({\hbox{Al}}_{0.09}^{3 + }\) is a potential candidate as the red-emitting phosphor for ultraviolet-based white light-emitting diodes.