| Tb~(3+)掺杂β-Ga_2O_3纳米粉末的结构和光致发光性质的研究 |
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| 引用本文： | 冯建武,刘世江.Tb~(3+)掺杂β-Ga_2O_3纳米粉末的结构和光致发光性质的研究[J].江西师范大学学报(自然科学版),2012(4):373-375. |
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| 作者姓名： | 冯建武 刘世江 |
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| 作者单位： | 洛阳师范学院物理与电子信息学院, 河南 洛阳 471022 |
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| 基金项目： | 河南省自然科学研究计划课题(2011A140019)资助项目 |
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| 摘 要： | 采用溶胶-凝胶法制备Tb3+掺杂β-Ga2O3纳米粉末.用X-射线衍射(XRD)、拉曼(Raman)、光致发光激发谱(PLE)和发光谱(PL)对其进行了一系列的表征.XRD和Raman的结果表明:Tb3+离子的掺入没有改变β-Ga2O3结构.用350 nm的激发光去激发Tb3+掺杂β-Ga2O3纳米粉末,样品的最强峰在543 nm(5D4-7F5)附近,对应着Tb3+离子的绿光发射.此外,还讨论了能量传递机制.
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| 关 键 词： | 溶胶-凝胶 纳米粉末 β-GaO 光致发光 能量传递 |
The Study for Structure and Photoluminescence Properties of Tb3+ Doped β-Ga2O3 Nanopowders |
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| FENG Jian-wu,LIU Shi-jiang.The Study for Structure and Photoluminescence Properties of Tb3+ Doped β-Ga2O3 Nanopowders[J].Journal of Jiangxi Normal University (Natural Sciences Edition),2012(4):373-375. |
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| Authors: | FENG Jian-wu LIU Shi-jiang |
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| Institution: | (College of Physics and Electronic Information,Luoyang Normal College,Luoyang He′nan 471022,China) |
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| Abstract: | Tb3+ doped β-Ga2O3 nanopowders were prepared by sol-gel method.X-ray diffraction(XRD),Raman technique,photoluminescence excitation spectra,and photoluminescence(PL) were used to characterize the nanopowders.XRD and Raman results revealed that the Tb3+ ions did not change the structure of β-Ga2O3 host lattice.When the Tb3+ doped β-Ga2O3 nanopowders were excited by 350 nm wavelength,the main emission of the samples was 543 nm(5D4-7F5),which corresponded to a typical green emission of Tb3+ ions.In addition,the energy transfer mechanism in Tb3+doped β-Ga2O3 nanopowders was discussed. |
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| Keywords: | sol-gel nanopowders β-Ga2O3 photoluminscence energy transfer |
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