| 溶胶凝胶法制备Er3+-Yb3+共掺纳米SiO2粉 |
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| 引用本文： | 徐庆安,禹忠,韦玮,侯洵. 溶胶凝胶法制备Er3+-Yb3+共掺纳米SiO2粉[J]. 化工新型材料, 2005, 33(8): 15-17 |
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| 作者姓名： | 徐庆安 禹忠 韦玮 侯洵 |
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| 作者单位： | 中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室,西安,710068;西安交通大学信息光子技术省重点实验室,西安,710049;中国科学院研究生院,北京,100039;中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室,西安,710068;西安交通大学信息光子技术省重点实验室,西安,710049;复旦大学先进功能材料研究所,上海,200433;西安交通大学信息光子技术省重点实验室,西安,710049;复旦大学先进功能材料研究所,上海,200433;中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室,西安,710068;西安交通大学信息光子技术省重点实验室,西安,710049 |
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| 基金项目： | 国家自然科学基金(59983001)，河南省杰出人才基金(0421001500)，教育部博士点基金(20030698008) |
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| 摘 要： | 利用溶胶-凝胶法合成了Er2O3-Yb2O3-SiO2纳米二氧化硅(SiO2)粉。Er3 和Yb3 直接加入有机酸催化的TEOS反应溶液中,凝胶后经过700~900℃,得到Er3 -Yb3 共掺纳米SiO2粉。样品经过红外光谱、XRD、TEM等分析,结果表明,纳米粉的粒径受有机酸比例和处理温度的影响。在室温PL谱上,样品可观察到较强的1530nm荧光,同时镱的引入对掺铒SiO2纳米粉在1.54μm的荧光发射有增强作用。
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| 关 键 词： | 溶胶-凝胶法 SiO2纳米粉 光致发光谱 |
| 修稿时间： | 2005-01-25 |
Er2O3-SiO2 and Er2O3-Yb2O3-SiO2 nanocomposite materials synthesized by sol-gel method |
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| Xu Qingan,Yu Zhong,Wei Wei,Hou Xun. Er2O3-SiO2 and Er2O3-Yb2O3-SiO2 nanocomposite materials synthesized by sol-gel method[J]. New Chemical Materials, 2005, 33(8): 15-17 |
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| Authors: | Xu Qingan Yu Zhong Wei Wei Hou Xun |
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| Affiliation: | Xu Qing'an~ |
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| Abstract: | Er_2O_3-SiO_2 and Er_2O_3-Yb_2O_3-SiO_2 nanocomposite photoluminescence materials were synthesized by sol-gel method. The Er~(3 ) and Yb~(3 ) were directly added in TEOS solution with organic acid catalyzer, and after the gels were annealed between 700 and 900, the Er_2O_3-Yb_2O_3-SiO_2 nanocomposite powder were gotten. The diameter of the powder were in the range of 70~360nm. The final solid products were characterized by IR spectroscopy, X-ray diffraction (XRD) and Transmission Electron Microscope (TEM). The results showed that the formation of nanoparticles is significantly influenced by proportions of acids and annealing temperatures.The samples exhibited obviously room-temperature photoluminescence phenomena, and the sample containing a high concentration of Yb_2O_3 showed a strong photoluminescence efficiency at 1530nm. |
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| Keywords: | sol-gel method silica nanocomposite powder photoluminescence spectrum |
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