| 掺锗SiO2 玻璃的发光现象 |
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| 引用本文： | 冯玉英,顾晓天,周家宏,姚杰,莫祥银,包建春.掺锗SiO2 玻璃的发光现象[J].应用化学,2005,22(8):926-0. |
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| 作者姓名： | 冯玉英 顾晓天 周家宏 姚杰 莫祥银 包建春 |
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| 作者单位： | 1. 南京师范大学分析测试中心,材料科学实验室,南京,210097
2. 南京师范大学化学与环境科学学院,南京,210097 |
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| 基金项目： | 江苏省教育厅自然科学基金(04KJD150110和04KJB150068)，南京师范大学优秀高层次人才基金(2004191XGQ2B43)资助项目 |
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| 摘 要： | 掺锗SiO2 玻璃的发光现象;Ge/SiO2玻璃;Ge纳米晶粒;溶胶-凝胶;光致发光
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| 关 键 词： | 掺锗SiO2 玻璃的发光现象 Ge/SiO2玻璃 Ge纳米晶粒 溶胶-凝胶 光致发光 |
| 文章编号： | 1000-0518(2005)08-0926-03 |
| 收稿时间： | 2009-06-29 |
| 修稿时间： | 2004年10月19 |
Photoluminescence Properties of Silica Glass Doped with Germanium |
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| FENG Yu-ying,GU Xiao-Tian,ZHOU Jia-hong,YAO Jie,MO Xiang-yin,BAO Jian-chun.Photoluminescence Properties of Silica Glass Doped with Germanium[J].Chinese Journal of Applied Chemistry,2005,22(8):926-0. |
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| Authors: | FENG Yu-ying GU Xiao-Tian ZHOU Jia-hong YAO Jie MO Xiang-yin BAO Jian-chun |
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| Institution: | FENG Yu-Ying~ |
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| Abstract: | SiO_2 glassy materials with Ge crystals embedded were formed by heating GeO_2/SiO_2 glass at 700 in the presence of hydrogen. GeO_2/SiO_2 glass was prepared with the sol-gel technique. The Ge/SiO_2 samples show a special photoluminescence property and exhibit strong luminescence at 392 nm(3.12 eV), secondary strong luminescence at 600 nm(2.05 eV) and weak luminescence at 770 nm(1.60 eV) when excited under 246 nm(5.01 eV) ultra-violet light at room temperature. The structure of this new luminescence material was studied with XRD, XPS, and TEM. The results show that the presence of nanometer sized(around 10 nm) Ge and GeO crystals in the SiO_2 may cause the three-band photoluminescence. The GeO_2/SiO_2 glass without going through the reducing process only has GeO_2 in the SiO_2 glass, and does not show the photo-(luminescence). |
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| Keywords: | Ge/SiO_2 glass nanosized Ge crystal sol-gel photoluminescence |
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