镝钐共掺铌酸锂单晶的白色激发光和能量转换的温度依赖
emperature dependence of white light emission and energy transfer in Dy3+ and Tm3+ co-doped LiNbO3 single crystals
本文研究了钐镝共掺同成份铌酸锂单晶的发射白光光谱特性。色度坐标、色纯度及色温随掺杂浓度变化而变化。当激发光为363nm，掺钐0.5mol%且掺镝1mol%的铌酸锂单晶体具有最优异的白光性能。Tm(0.5mol%):Dy(1mol%):LiNbO3在400K时具色纯度为9.97%。本文也分析了Tm3+和Dy3+之间能量传递机理及20K到430K温度变化时的能量传递效率。结果表明钐镝掺杂的铌酸锂可以被较好的应用到温度传感器和紫外激发白光的应用。
he spectroscopic characteristics of the Thulium and Dysprosium co-doped congruent LiNbO3 (Tm:Dy:CLN) single crystals have been studied for white-light generation. The chromaticity coordinates, color purity and color temperature could be tuned with different doping concentrations or temperatures. Optimal white emission was achieved when co-doped 0.5mol% Tm3+ and 1.0mol% Dy3+ under 363nm excitation. The optimal operating temperature of Tm(0.5mol%):Dy(1mol%):CLN for white emissions was determined to be 400K with the minimum color purity of 9.97%. The energy transfers between Tm3+ and Dy3+ were analyzed in detail and the energy transfer efficiencies at temperature ranging from 20K to 430K were determined. The results in this paper indicated the potential applications of Tm:Dy:CLN in optical temperature sensors and ultraviolet (UV) excited white light emission..
龙思卫、王彪、林少鹏、马德才
物理学晶体学光电子技术
光学特性y:LiNbO3黄色荧光
Optical propertiesDy:Tm:CLTwhite luminescence
龙思卫,王彪,林少鹏,马德才.镝钐共掺铌酸锂单晶的白色激发光和能量转换的温度依赖[EB/OL].(2017-04-21)[2025-08-11].http://www.paper.edu.cn/releasepaper/content/201704-308.点此复制
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