| 铒掺杂二氧化钛纳米制备及上转换性能研究 |
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| 引用本文： | 俞泽民,侯俊,范叶霞,夏霏霏,夏士兴.铒掺杂二氧化钛纳米制备及上转换性能研究[J].哈尔滨商业大学学报(自然科学版),2012(1):102-105,114. |
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| 作者姓名： | 俞泽民 侯俊 范叶霞 夏霏霏 夏士兴 |
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| 作者单位： | 哈尔滨理工大学材料科学与工程学院;哈尔滨工业大学化工学院 |
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| 基金项目： | 哈尔滨市科技(攻关)计划项目(2008AA2CG149) |
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| 摘 要： | 以溶胶-凝胶法制备了掺Er3+的TiO2上转换发光纳米粉,通过XRD、SEM、上转换荧光发光谱等测试,对不同物质的量百分比Er3+掺杂和热处理温度的TiO2纳米粉进行了上转换性能研究,并对其发光机理进行了分析.结果表明,适量Er3+物质的量百分比及适当热处理温度有利于增强TiO2纳米粉的上转换发光性能.Er3+:TiO2粉体在980 nm激发下在539～567 nm范围获得绿光、在669 nm处获得红光.随着Er3+的物质的量百分比增加,绿光增强,红光减弱(小于1%);物质的量百分比继续增加,绿、红光均弱.随着焙烧温度的升高,绿光增强,红光减弱.当Er3+掺杂物质的量百分比为1%;焙烧温度为800℃时,获得的绿光强度较高、色彩单一.
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| 关 键 词： | 二氧化钛 纳米粉 溶胶-凝胶法 上转换发光 |
Preparation and up-conversion luminescence of Er3+ doped TiO2 synthesized |
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| YU Ze-min,HOU Jun,FAN Ye-xia,XIA Fei-fei,XIA Shi-xing.Preparation and up-conversion luminescence of Er3+ doped TiO2 synthesized[J].Journal of Harbin University of Commerce :Natural Sciences Edition,2012(1):102-105,114. |
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| Authors: | YU Ze-min HOU Jun FAN Ye-xia XIA Fei-fei XIA Shi-xing |
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| Institution: | 1.School of Materials Science and Engineering,Harbin University of Science and Technology,Harbin 150080;2.School of Chemical Engineering,Harbin Institute of Technology,Harbin 150001,China) |
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| Abstract: | The Er3+ doped TiO2 upconversion luminescence nano-powders were prepared by sol-gel method,being characterized by XRD,SEM,emission spectroscopy.Upconversion nano-powders luminescent mechanism and different concentration Er3+ doped and heat treatment temperature on TiO2 up-conversion fluorescence were analyzed.The results indicated that moderate Er3+ concentration and appropriate heat treatment temperature were good for increasing TiO2 nano-powders upconversion capability.Er3+ doped TiO2 powders were excited by 980 nm infrared spectrum,gained green light beyond 539~567 nm,gained red light on 669 nm,and the intensity on green light was more than infrared.With the concentration of Er3+ increasing,green light intensity was strengthening,and red light intensity was weakening(less than mole fraction 1%);continuing to increase the concentrations,green and red lights were relatively weak.With heat treatment temperature increasing,green light intensity was strengthening,and red light intensity was weakening.When the Er3+ doping density was 1mol%,and roasting temperature was 800 ℃,the intensity green light obtained was higher and the color was unitary. |
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| Keywords: | titania nano-powders sol-gel method upconversion lumine-scence |
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