| 溶胶-凝胶法制备掺Sm3+的SiO2玻璃的结构及发光性能 |
| |
| 引用本文： | 王喜贵,吴红英,谢大弿,翁诗甫,吴瑾光.溶胶-凝胶法制备掺Sm3+的SiO2玻璃的结构及发光性能[J].化学物理学报(中文版),2001,14(3):330-334. |
| |
| 作者姓名： | 王喜贵 吴红英 谢大弿 翁诗甫 吴瑾光 |
| |
| 作者单位： | 王喜贵,吴红英(内蒙古师范大学化学系,);谢大弿,翁诗甫,吴瑾光(北京大学化学与分子工程学院,)
|
| |
| 基金项目： | 国家重点基础研究发展计划(973计划)，内蒙古科技厅重大项目目，内蒙古师范大学校科研和教改项目 |
| |
| 摘 要： | 利用溶胶-凝胶技术制备了掺不同量Sm3+和不同退火温度下的SiO2凝胶和玻璃,通过三维荧光光谱、激发光谱、发射光谱的测试,确定了Sm3+在SiO2凝胶玻璃中的最佳激发波长为360 nm,最强发射波长为610 nm,激发光谱的峰位置在360、393、464 nm处,发射光谱的峰位置在578、591、595、610、732nm处,分别归属于4G5/2-6H5/2、4G5/2-6H7/2、4G5/2-6H11/2跃迁,并证明当掺杂量达到1.15%时,Sm3+的发光最强,当Sm3+的掺杂量超过1.15%时,发生浓度猝灭效应.
|
| 关 键 词： | 稀土 溶胶-凝胶法 掺Sm3+的SiO2玻璃 |
Study on the Structure and Luminescence Properties of Sm3+- doped SiO2 Glass Derived from a Sol- gel Process |
| |
| Wang Xigui,Wu Hongying,Xie Datao,Weng Shifu,Wu Jinguang.Study on the Structure and Luminescence Properties of Sm3+- doped SiO2 Glass Derived from a Sol- gel Process[J].化学物理学报(中文版),2001,14(3):330-334. |
| |
| Authors: | Wang Xigui Wu Hongying Xie Datao Weng Shifu Wu Jinguang |
| |
| Institution: | {{each article.affiliations aff i}}
{{if aff.addressEn && aff.addressEn != ""}}
{{if aff.label && aff.label != "" && article.affiliations.length != 1}}{{@ aff.label}}.{{/if}}{{@ aff.addressEn}}{{/if}}
{{/each}} |
| |
| Abstract: | Under different annealing temperature, Sm3+-doped SiO2gel and glass were prepared by sol-gel method and three-dimensional fluorescence spectra, excitation spectra and emission spectra of Sm3+in SiO2glass were measured. The results showed that the optimum excitation wavelength is 360nm, the strongest emission wavelength is 610nm, the excitation peak position are at 364, 393, 464nm, the emission peak position are at 578, 591, 595, 610, 732nm, which caused from, respectively,4G5/2—6H5/2,4G5/2—6H7/2,4G5/2—6H11/2transition of Sm3+. The effect of the Sm3+concentration on the emission intensity has been discussed, and the emission intensity of Sm3+became the stronger with increasing the doping concentration. The concentration quenching will occur when concentration of Sm3+exceeds 1.15%. |
| |
| Keywords: | Rare earths Sol-gel method Sm3+-doped SiO2glasses |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《化学物理学报(中文版)》浏览原始摘要信息 |
| 点击此处可从《化学物理学报(中文版)》下载免费的PDF全文 |
|
