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OH-对Tm3+Yb3+共掺碲酸盐玻璃上转换发光的影响
EFFECT OF OH- ON UPCONVERSION LUMINESCENCE TM3+/YB3+-CODOPED TELLURITE GLASSES
【作者】 徐时清; 张丽艳; 赵士龙; 王宝龄; 陈亮; 李晨霞; 杨凯;
【Author】 XU Shiqing ZHANG Liyan ZHAO Shilong WangBaoling ChenLiang Li Chenxia Yang Kai(Institute of Optoelectronic Materials and Devices, College of Information Engineering, China Jiliang University, Hangzhou 310018, China)
【机构】 中国计量学院信息工程学院光电材料与器件研究所;
【摘要】 研究了Tm3+/Yb3+共掺碲酸盐玻璃的Raman光谱、红外光谱和上转换发光光谱,分析了OH-对Tm3+上转换发光的影响。结果表明:氧氯碲酸盐玻璃的声子能量高于氧氟碲酸盐玻璃的声子能量,但是Tm3+/Yb3+共掺氧氟碲酸盐玻璃的上转换发光强度高于Tm3+/Yb3+共掺氧氯碲酸盐玻璃,分析认为这主要是由于OH-的影响,在氧氟碲酸盐玻璃中OH-浓度较低,导致Tm3+的荧光寿命高,从而提高Tm3+的上转换发光.并且在一定程度上,OH-对Tm3+上转换发光的影响大于声子能量对Er3+上转换发光的影响。研究结果有助于进一步提高Tm3+的发光效率.
【Abstract】 The Raman spectra, infrared spectra and upconversion luminescence spectra of Tm 3+/Yb +-codoped tellurite glasses were studied,and effect of OH" on upconversion luminescence of Tm + was analyzed. The results show that the phonon energy of oxychloride tellurite glasses was lower than that of oxyfluoride tellurite glass, but upconversion emission intensity of Tm3+/ Yb3+-codoped oxyfluoride tellurite glass was more than that of Tm3+/Yb3’f-codoped oxychloride tellurite glass. The analysis considers that it was attributed mainly to the effect of OH-. OH-concentration in Tm3+VYb3+-codoped oxychloride tellurite glass is lower, which results in the higher of the fluorescence lifetime of Tm3+, as a result of upconversion luminescence of Tm3+ was enhanced. To a certain degree, the effect of OH" on upconversion luminescence of Tm 3+ was more than that of phonon energy. The investigated results were conducing to increase luminescence efficiency of Tm3+
【Key words】 Tellurite glasses; upconversion luminescence; OH-; rare-earth-doped glasses;
- 【会议录名称】 光电技术与系统文选——中国光学学会光电技术专业委员会成立二十周年暨第十一届全国光电技术与系统学术会议论文集
- 【会议名称】中国光学学会光电技术专业委员会成立二十周年暨第十一届全国光电技术与系统学术会议
- 【会议时间】2005-08
- 【会议地点】中国北京
- 【分类号】O482.31
- 【主办单位】中国光学学会光电技术专业委员会