| NBT-Eu纳米粉体的水热合成及其发光性能研究 |
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| 引用本文： | 孙建建,陈鹏飞,张帅,方必军,丁建宁.NBT-Eu纳米粉体的水热合成及其发光性能研究[J].发光学报,2016,37(2):151-157. |
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| 作者姓名： | 孙建建 陈鹏飞 张帅 方必军 丁建宁 |
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| 作者单位： | 常州大学 材料科学与工程学院, 江苏省光伏科学与工程协同创新中心, 江苏 常州 213164 |
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| 基金项目： | 国家自然科学基金(51577015)，江苏省高校自然科学研究重大项目(15KJA43002)，江苏高校优势学科建设工程(苏学科办[2014]9号) |
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| 摘 要： | 采用水热合成法、在不同条件下制备Na0.5Bi0.49Eu0.01Ti O3(NBT-Eu)纳米粉体。通过X射线粉末衍射(XRD)、紫外-可见光谱、透射电子显微镜、荧光光谱对样品进行表征。结果表明,在200℃、碱浓度12 mol·L-1、反应时间24 h、添加剂OP-10用量为0.6 m L时,可以得到纯三方钙钛矿结构的NBT-Eu粉体,该粉体以直径为15~200 nm的纳米棒形式存在。NBT-Eu粉体在458 nm激发下,产生689 nm的荧光,该荧光由Eu3+的5D0→7F4能级跃迁产生。
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| 关 键 词： | NBT-Eu 水热合成 光致发光 |
| 收稿时间： | 2015-11-06 |
Hydrothermal Synthesis and Luminescence Properties of NBT-Eu Nanopowders |
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| SUN Jian-jian,CHEN Peng-fei,ZHANG Shuai,FANG Bi-jun,DING Jian-ning.Hydrothermal Synthesis and Luminescence Properties of NBT-Eu Nanopowders[J].Chinese Journal of Luminescence,2016,37(2):151-157. |
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| Authors: | SUN Jian-jian CHEN Peng-fei ZHANG Shuai FANG Bi-jun DING Jian-ning |
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| Institution: | School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, China |
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| Abstract: | Na0.5Bi0.49Eu0.01TiO3 nanopowders were prepared by the hydrothermal method under different conditions. The synthesized nanopowders were characterized by X-ray diffraction, UV-visible spectra, transmission electron microscopy and photoluminescence spectra. The results reveal that the phase-pure rhombohedral perovskite structure NBT-Eu powders can be prepared at a hydrothermal temperature of 200 ℃ for 24 h with 12 mol·L-1 NaOH and 0.6 mL OP-10. The powders exhibit nanorod shape with a diameter of 15 to 200 nm. Under the excitation of 458 nm light, NBT-Eu nanopowders exhibit the strongest emission at 689 nm, which can be attributed to 5D0→7F4 transition of Eu3+. |
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| Keywords: | NBT-Eu hydrothermal synthesis photoluminescence |
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