无机材料学报 ›› 2025, Vol. 40 ›› Issue (9): 1037-1044.DOI: 10.15541/jim20240497

• 研究快报 • 上一篇    

Cr3+掺杂浓度对YAGG:Ce3+,Cr3+发光陶瓷余辉性能的影响

李廷松1,2(), 王文丽1,3, 刘强3, 王雁斌1,2, 周真真1,2, 胡辰1,2, 李江1,2()   

  1. 1.中国科学院 上海硅酸盐研究所, 透明陶瓷研究中心, 上海 201899
    2.中国科学院大学 材料科学与光电工程中心, 北京 100049
    3.江苏大学 材料科学与工程学院, 镇江 212013
  • 收稿日期:2024-11-28 修回日期:2024-12-25 出版日期:2025-09-20 网络出版日期:2025-01-24
  • 通讯作者: 李江, 研究员. E-mail: lijiang@mail.sic.ac.cn
  • 作者简介:李廷松(1998-), 男, 硕士研究生. E-mail: litingsong@mail.sic.ac.cn

Influence of Cr3+ Doping Concentration on the Persistent Performance of YAGG:Ce3+,Cr3+ Luminescent Ceramics

LI Tingsong1,2(), WANG Wenli1,3, LIU Qiang3, WANG Yanbin1,2, ZHOU Zhenzhen1,2, HU Chen1,2, LI Jiang1,2()   

  1. 1. Transparent Ceramics Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China
    2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
    3. School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China
  • Received:2024-11-28 Revised:2024-12-25 Published:2025-09-20 Online:2025-01-24
  • Contact: LI Jiang, professor. E-mail:lijiang@mail.sic.ac.cn
  • About author:LI Tingsong (1998-), male, Master candidate. E-mail: litingsong@mail.sic.ac.cn
  • Supported by:
    National Key R&D Program of China(2023YFB3506600)

摘要:

Y3Al2Ga3O12:Ce3+,Cr3+(YAGG:Ce3+,Cr3+)作为长余辉发光材料, 具有初始发光强度高和余辉时间长的优点, 在长余辉发光材料应用中具有广阔的前景。目前, YAGG:Ce3+,Cr3+粉体具有良好的余辉性能, 但陶瓷的余辉性能还有待进一步优化。本工作通过固相反应及空气预烧结、热等静压烧结(HIP)后处理和空气退火制备了不同Cr3+掺杂浓度的(Y0.998Ce0.002)3(Al1-xCrx)2Ga3O12陶瓷, 研究了Cr3+掺杂浓度对陶瓷的微观结构、光学性能和余辉性能的影响。结果表明, 随着Cr3+掺杂浓度从0.025%增加到0.2%(原子百分数), 预烧结陶瓷或HIP后处理陶瓷的微观结构没有明显变化, 但陶瓷的直线透过率逐渐增加, 余辉性能逐渐下降。其中, 掺杂了0.025% Cr3+的YAGG:Ce3+,Cr3+陶瓷经过空气预烧结结合HIP后处理和空气退火后, 具有超过6055 mcd/m2的最强初始发光强度和1030 min的最长余辉时间。本工作通过优化Cr3+掺杂浓度和制备工艺, 使得YAGG:Ce3+,Cr3+陶瓷的长余辉发光(PersL)性能得到明显提升。

关键词: YAGG:Ce3+,Cr3+陶瓷, Cr3+掺杂浓度, 长余辉发光, 热等静压烧结, 空气退火

Abstract:

Y3Al2Ga3O12:Ce3+,Cr3+ (YAGG:Ce3+,Cr3+), as a persistent luminescent material, has advantages of high initial luminescence intensity and long persistent time, which is promising in persistent luminescent material applications. At present, YAGG:Ce3+,Cr3+ powders exhibit good persistent performance, but their persistent performance of ceramics still needs to be further improved to meet the new requirements. In this work, (Y0.998Ce0.002)3(Al1-xCrx)2Ga3O12 ceramics with different Cr3+ doping concentrations were prepared by solid-state reaction, including air pre-sintering, hot isostatic pressing (HIP) post-treatment and air annealing, to investigate the effects of Cr3+ doping concentration on the microstructure, optical properties and persistent performance of the ceramics. The results showed that as the doping concentration of Cr3+ increased from 0.025% to 0.2% (in atom), no significant effect of Cr3+ concentration on the morphology of pre-sintered ceramics or HIP post-treatment ceramics was observed, but the in-line transmittance gradually increased while the persistent performance gradually decreased. Among them, YAGG:Ce3+,Cr3+ ceramics doped with 0.025% Cr3+ showed the strongest initial luminescence intensity exceeding 6055 mcd/m2 and a persistent time of 1030 min after air pre-sintering combined with HIP post-treatment and air annealing. By optimizing the Cr3+ doping concentration and the fabrication process, the persistent luminescence (PersL) performance of the YAGG:Ce3+,Cr3+ ceramics was obviously improved.

Key words: YAGG:Ce3+,Cr3+ ceramic, Cr3+ doping concentration, persistent luminescence, hot isostatic pressing, air annealing

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