无机材料学报 ›› 2016, Vol. 31 ›› Issue (10): 1099-1102.DOI: 10.15541/jim20160223

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Ce, Pr离子双掺LuAG透明陶瓷制备及光学性能

周 鼎1, 2, 施 鹰1, 范灵聪1, 林德宝1, 孙泽清2, 徐家跃2   

  1. (1. 上海大学 材料科学与工程学院 电子信息材料系, 上海 200072; 2. 上海应用技术大学, 材料科学与工程学院晶体生长研究所, 上海 201418)
  • 收稿日期:2016-04-01 修回日期:2016-06-22 出版日期:2016-10-20 网络出版日期:2016-09-23
  • 作者简介:周 鼎 (1982– ), 男, 博士研究生. E-mail: ben82powder@hotmail.com
  • 基金资助:
    国家自然科学基金(61475097);上海市联盟计划项目(LM201521)

Fabrication and Optical Properties of Ce, Pr Co-doped LuAG Transparent Ceramics

ZHOU Ding1, 2, SHI Ying1, FAN Ling-Cong1, LIN De-Bao1, SUN Ze-Qing2, XU Jia-Yue2   

  1. (1. Department of Electronics and Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China; 2. Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China)
  • Received:2016-04-01 Revised:2016-06-22 Published:2016-10-20 Online:2016-09-23
  • About author:ZHOU Ding. E-mail: ben82powder@hotmail.com
  • Supported by:
    National Natural Science Foundation of China (61475097);Shanghai Alliance Research Program (LM201521)

摘要:

以NH4OH+NH4HCO3混合溶液作为复合沉淀剂, 利用反向滴定共沉淀法制备了不同浓度Ce, Pr共掺杂LuAG沉淀前驱体, 并研究了Pr掺杂浓度为 0.25at%, Ce掺杂浓度分别为0、0.1at%、0.2at%和0.3at%的LuAG透明陶瓷的光学性能。沉淀前驱体经马弗炉1200℃煅烧2 h后所得粉体的分散性较好, 一次颗粒尺寸约为60 nm。该粉体经干压和冷等静压成型后, 在H2气氛1800℃下烧结6 h制备出透明陶瓷, 经双面抛光后透明陶瓷在800 nm波长处直线透过率达到82%。X射线激发的发射光谱表明, 共掺使Pr离子5d-4f的发射能量传递给Ce离子, 有助于提高LuAG透明陶瓷在550 nm发光中心的发光强度。0.2at%Ce和0.25at%Pr共掺杂时, 透明陶瓷的发光强度达到最大。

关键词: Ce离子, Pr离子, LuAG透明陶瓷, 光学性能

Abstract:

Cerium and Praseodymium co-doped Lu3Al5O12 nanocrystalline powders were synthesized by reverse titration, using ammonium hydroxide (NH4OH) and ammonium hydrogen carbonate (NH4HCO3) mixed precipitator. The optical properties of 0.25at%Pr: LuAG ceramics doped with 0, 0.1at%, 0.2at% and 0.3at% Ce3+ ions were measured. The Ce, Pr: LuAG powders showed a weak agglomeration with a primary particle size of about 60 nm after calcining at 1200℃ for 2 h. Ce, Pr co-doped LuAG transparent ceramics were obtained after green compacts were cold isostatic pressed and sintered in flowing H2 atmosphere at 1800℃ for 6 h. The in-line transmittance of the double face polished Ce, Pr co-doped LuAG ceramic at 800 nm wavelength was 82%. The X-ray excited emission spectrum showed that the emission intensity at 550 nm wavelength was enhanced in Ce, Pr co-doped LuAG transparent ceramics by energy transfer from 5d-4f of Pr3+ ions to Ce3+ ions, and the emission intensity reached maximum value when the dopant contents were 0.2at%Ce and 0.25at%Pr.

Key words: Ce3+ ion, Pr3+ ion, LuAG tansparent ceramic, optical properties

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