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人工晶体学报 ›› 2021, Vol. 50 ›› Issue (2): 325-330.

• 研究论文 • 上一篇    下一篇

共沉淀法制备LuGG∶Ce纳米荧光粉及其发光性能研究

刘文鹏1, 任浩2, 李泓沅2, 丁守军1,2, 张庆礼1   

  1. 1.中国科学院合肥物质科学研究院安徽光学精密机械研究所,安徽省光子器件与材料重点实验室,合肥 230031;
    2.安徽工业大学数理科学与工程学院,马鞍山 243032
  • 收稿日期:2020-11-09 发布日期:2021-03-24

Luminescent Properties of LuGG∶Ce Nanophosphor Synthesized via Co-Precipitation Method

LIU Wenpeng1, REN Hao2, LI Hongyuan2, DING Shoujun1,2, ZHANG Qingli1   

  1. 1.The Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;
    2.School of Science and Engineering of Mathematics and Physics, Anhui University of Technology, Maanshan 243032, China
  • Received:2020-11-09 Published:2021-03-24
  • Contact: DING Shoujun, doctor, assistant professor. E-mail: sjding@ahut.edu.cn
  • About author:LIU Wenpeng(1981—), male, from Hebei Province, doctor, assistant professor. E-mail: Wpliu@aiofm.ac.cn
  • Supported by:
    The Joint Fund of Chinese Academy of Sciences (6141A01080302); National Key Research and Development Program of China (2016YFB0402101); University Natural Science Research Project of Anhui Province of China (KJ2019ZD06); National Natural Science Foundation of China (51702322, 51802307); Fund of Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences (2008DP173016)

摘要: 采用共沉淀法合成了Ce3+掺杂的Lu3Ga5O12(LuGG∶Ce)纳米荧光粉,采用Rietveld结构精修的方法确定了其结构参数。用扫描电子显微镜(SEM)测定了所合成纳米荧光粉的形貌。在365 nm激发光激发下,观测到的发射光谱呈非对称宽带,中心波长为438 nm。通过高斯拟合得到该发射谱带包含中心波长分别为426 nm和470 nm的两个发射峰。LuGG∶Ce的发光色度坐标为(0.176 9, 0.180 3),对应为蓝光发射。结果表明,LuGG∶Ce适用于通过紫外光(UV)激发实现蓝光发射,在紫外光(UV)激发白光LED领域具有潜在的应用前景。

关键词: LuGG∶Ce, 纳米荧光粉, 共沉淀法, 紫外光激发, 白光LED, 发光性能

Abstract: Ce3+ doped Lu3Ga5O12 (LuGG∶Ce) nanophosphor was synthesized via co-precipitation method. Its structured parameters were obtained by Rietveld refinement method. The morphology of the as-synthesized nanophosphor was determined with Scanning Electron Microscope (SEM). Under 365 nm excitation, the emission spectrum exhibits an asymmetry broad band with central wavelength at 438 nm and this broad band can be deconvolved into two peaks with wavelength centers at around 426 nm and 470 nm, respectively. The chromaticity coordinate of LuGG∶Ce is (0.176 9, 0.180 3), which corresponds to blue light emission. The results show LuGG∶Ce is suitable for realizing blue light emission under UV excitation and thus has potential applications in the fields of UV-excited white light emitting diodes(LEDs).

Key words: LuGG∶Ce, nanophosphor, co-precipitation method, UV excitation, white LED, luminescent property

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