Ce, Pr离子双掺LuAG透明陶瓷制备及光学性能

doi:10.15541/jim20160223

无机材料学报 ›› 2016, Vol. 31 ›› Issue (10): 1099-1102.DOI: 10.15541/jim20160223 CSTR: 32189.14.10.15541/jim20160223

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. 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 Ding^{1, 2}, SHI Ying¹, FAN Ling-Cong¹, LIN De-Bao¹, SUN Ze-Qing², XU Jia-Yue²

(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/Abstract

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

中图分类号:

TB383

周鼎, 施鹰, 范灵聪, 林德宝, 孙泽清, 徐家跃. Ce, Pr离子双掺LuAG透明陶瓷制备及光学性能[J]. 无机材料学报, 2016, 31(10): 1099-1102.

ZHOU Ding, SHI Ying, FAN Ling-Cong, LIN De-Bao, SUN Ze-Qing, XU Jia-Yue. Fabrication and Optical Properties of Ce, Pr Co-doped LuAG Transparent Ceramics[J]. Journal of Inorganic Materials, 2016, 31(10): 1099-1102.

图/表 6

图1 反向共沉淀法制备的Ce, Pr: LuAG沉淀前驱体的TG-DSC曲线

Fig. 1 TG-DSC curves of the Ce, Pr: LuAG precursor prepared by reverse co-precipitant method

图2 1200℃/2 h煅烧后Y2粉体的SEM照片

Fig. 2 SEM image of Y2 powders calcined at 1200℃ for 2 h

图3 Y2前驱粉体经1200℃煅烧2 h所得粉体的TEM(a)和HR-TEM(b)照片

Fig. 3 TEM (a) and HR-TEM (b) morphologies of Y2 powders calcined at 1200℃ for 2 h

图4 1800℃/6 h烧结的Y0-Y3透明陶瓷样品的照片

Fig. 4 Pictures of Ce, Pr: LuAG transparent ceramics (Y0-Y3)

图5 Y0-Y3透明陶瓷的光学透过率曲线

Fig. 5 In-line transmittance curves of Y0-Y3 transparent ceramics

图6 Y0-Y3透明陶瓷的X射线激发下的发射光谱

Fig. 6 X-ray exited emission spectra of Y0-Y3 transparent ceramics

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Ce, Pr离子双掺LuAG透明陶瓷制备及光学性能

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

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