| Yb:Er:Tm:LiTaO3的上转换发白光性能研究 |
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| 引用本文： | 石连升,温猛,钱艳楠,王锐,郝铭. Yb:Er:Tm:LiTaO3的上转换发白光性能研究[J]. 中国稀土学报, 2011, 29(1) |
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| 作者姓名： | 石连升 温猛 钱艳楠 王锐 郝铭 |
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| 作者单位： | 1. 哈尔滨理工大学材料科学与工程学院,黑龙江,哈尔滨,150080
2. 哈尔滨工业大学化学系,黑龙江哈尔滨,150001 |
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| 摘 要： | 980 nm脉冲激光激发下,首次通过高温固相法制备Yb(10%):Er(1%):Tm(1%):LiTaO3(摩尔分数)多晶粉并实现室温上转换白光.X射线粉末衍射测试结果表明,Yb:Er:Tm:LiTaO3中的掺杂离子并没有改变晶格结构,以取代的方式存在于钽酸锂晶格中.结合功率曲线测试结果和上转换机制研究发现,产生上转换蓝光的Tm3+离子1G4态的布居主要来自双光子同时吸收过程.而单光子上转换输出的红光,则由Tm3+和Er3+离子之间的交叉弛豫过程产生,即3F2/3(Tm3+)+4I15/2(Er3+)→3H6(Tm3+)+4I9/2(Er3+).上转换绿光来源于Yb/Er离子对的二次能量传递.
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| 关 键 词： | 高温固相法 上转换白光 跃迁机制 稀土 |
Tm: Yb: Er: LiTaO3 Upconversion Properties of White Light |
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| Shi Liansheng,Wen Meng,Qian Yannan,Wang Rui,Hao Ming. Tm: Yb: Er: LiTaO3 Upconversion Properties of White Light[J]. Journal of the Chinese Society of Rare Earths, 2011, 29(1) |
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| Authors: | Shi Liansheng Wen Meng Qian Yannan Wang Rui Hao Ming |
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| Affiliation: | Shi Liansheng1,Wen Meng1,Qian Yannan2,Wang Rui2,Hao Ming1(1.School of Materials Science and Engineering,Harbin University of Science and Technology,Harbin 150080,China,2.Department of Chemistry,Harbin Institute of Technology,Harbin 150001,China) |
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| Abstract: | The room temperature bright white upconversion(UC) luminescence in Yb3+/Er3+/Tm3+-tridoped LiTaO3 polycrystal,which was prepare by high temperature solid state method,was obtained under single-wavelength diode laser excitation of 980 nm.X-ray diffraction indicated that the crystal structure of LiTaO3 was not changed by doping with the trivalent ions(Yb3+,Er3+ and Tm3+).Combined with the pump power dependence analysis and the UC mechanisms,it was found that the blue upconversion emission came from the popula... |
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| Keywords: | Yb:Er:Tm:LiTaO3 |
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