| Er3+/Y3+/Yb3+共掺杂氧化铝光致发光增强研究 |
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| 引用本文： | 詹晓丽,俞建长,黄清明.Er3+/Y3+/Yb3+共掺杂氧化铝光致发光增强研究[J].福州大学学报(自然科学版),2012,40(4):531-534. |
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| 作者姓名： | 詹晓丽 俞建长 黄清明 |
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| 作者单位： | 福州大学材料科学与工程学院 |
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| 基金项目： | 福建省自然科学基金资助项目(2008J0146) |
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| 摘 要： | 采用sol-gel法制备了不同摩尔比例的Er3+/Y3+/Yb3+共掺杂Al2O3粉末.X射线衍射(XRD)结果表明各样品均以δ-Al2O3为主相.利用荧光光谱仪测试各样品的光致发光(PL)谱,结果表明Y3+的共掺杂明显的提高了Er3+的PL强度.Er3+/Y3+/Yb3+共掺杂Al2O3粉末的PL强度随着Yb3+浓度呈先增大后减小的变化,Er3+∶Y3+∶Yb3+的摩尔比例为1∶20∶10时,样品的PL强度在Y3+共掺杂的Er3+∶Al2O3粉末的PL强度提高了7倍的基础上进一步提高了近4倍,说明Er3+/Y3+/Yb3+的共掺杂能够更有效地提高Er3+的PL强度.
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| 关 键 词： | 共掺杂 氧化铝 溶胶-凝胶 光致发光 |
Investigation on enhanced photoluminescence of Er3+/Y3+/Yb3+ co-doped alumina powders |
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| ZHAN Xiao-li,YU Jian-chang,HUANG Qing-ming.Investigation on enhanced photoluminescence of Er3+/Y3+/Yb3+ co-doped alumina powders[J].Journal of Fuzhou University(Natural Science Edition),2012,40(4):531-534. |
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| Authors: | ZHAN Xiao-li YU Jian-chang HUANG Qing-ming |
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| Institution: | (College of Materials Science and Engineering,Fuzhou University,Fuzhou,Fujian 350108,China) |
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| Abstract: | The different molar ratio of Er3+/Y3+/Yb3+co-doped Al2O3 powders have been prepared by sol-gel method.X-ray diffraction(XRD) results show that primary phase of the samples is δ-Al2O3.The photoluminescence(PL) spectra is obtained by fluorescence spectrometer show that the PL intensity for Er3+ by Y3+ co-doping is significantly enhanced.The PL intensity of Er3+/Y3+/Yb3+ co-doped Al2O3 powders is increased at first and then decreased with the increase of Y3+ co-doping concentration.When the molar ratio of Yb3+ and Er3+ is 1∶ 10,the intensity of sample is further improved by about 4 times on the basis of the intensity of Er3+-doped Al2O3 powders increased by 7 times with Y3+ co-doping.The results show that the intensity Er3+ is more effectively enhanced by Er3+/Y3+/Yb3+ co-doping. |
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| Keywords: | co-doped Al2O3 sol-gel photoluminescence |
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