| 铕掺杂二氧化钛纳米晶的制备和发光性质 |
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| 引用本文： | 焦秀烨,韩晶.铕掺杂二氧化钛纳米晶的制备和发光性质[J].东北林业大学学报,2009,37(6). |
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| 作者姓名： | 焦秀烨 韩晶 |
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| 作者单位： | 1. 哈尔滨师范大学,哈尔滨,150025
2. 黑龙江工程学院 |
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| 基金项目： | 黑龙江省自然科学基金资助项目，黑龙江省教育厅科学技术研究项目 |
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| 摘 要： | 利用溶胶-凝胶技术制备了TiO2纳米晶和掺杂Eu3+的TiO2纳米晶,测试了样品的X射线谱(XRD)和荧光光谱(PL),研究了不同煅烧温度下,TiO2:Eu3+的发光性质.Eu3+离子的掺入能抑制TiO2由锐钛矿相向金红石相的转变,464nm的激发波长对发射最有利,578nm处存在自吸收,随着退火温度增高,TiO2:Eu3+样品稀土发光强度下降.
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| 关 键 词： | 溶胶-凝胶 光致发光 二氧化钛 |
Synthesis and Luminescence of Nanocrystalline TiO_2:Eu~(3+) Powders |
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| Jiao Xiuye,Han Jing.Synthesis and Luminescence of Nanocrystalline TiO_2:Eu~(3+) Powders[J].Journal of Northeast Forestry University,2009,37(6). |
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| Authors: | Jiao Xiuye Han Jing |
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| Institution: | Jiao Xiuye(School of Physics , Electronic Engineering,Harbin Normal University,Harbin 150025,P.R.China),Han Jing(Heilongjiang Institute of Technology) |
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| Abstract: | Nanocrystalline TiO2 and TiO2:Eu3+ powders were synthesized by sol-gel method.The X-ray diffraction spectrum and photoluminescence(PL) spectrum were measured.The luminescent properties of nanocrystalline TiO2:Eu3+ under different sintering temperatures were studied.Result shows that the doping of Eu3+ suppresses the phase transformation of TiO2 from anatase to rutile.The excite wavelength 464 nm is the most effective for PL emission,and self-absorption happens near 578 nm.The PL signal weakens with annealin... |
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| Keywords: | Sol-gel Photoluminescence Titanium dioxide |
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