Si/Al order and texture orientation optimization of red-emitting Mg_(2)Al_(4)Si_(5)O_(18):Eu^(2+)ceramics for laser phosphor display  

作　　者：Weibin Chen Yuzhen Wang Gaochao Liu Yongsheng Sun Zhiguo Xia 

机构地区：[1]State Key Laboratory of Luminescent Materials and Devices,Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques,Guangdong Engineering Technology Research and Development Centre of Special Optical Fiber Materials and Devices,School of Materials Science and Engineering,South China University of Technology,Guangzhou,510641,China [2]School of Physics and Optoelectronics,South China University of Technology,Guangzhou,510641,China

出　　处：《Journal of Materiomics》2024年第5期1137-1143,共7页无机材料学学报（英文）

基　　金：This research was supported by National Natural Science Foundations of China(51972118);the Fundamental Research Funds for the Central Universities(2023ZYGXZR002);the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program(2017BT01X137).

摘　　要：Laser phosphor display technology plays an important role in advanced display projection;however,it is a challenge in maintaining excellent color accuracy under high brightness due to the lack of red spectrum.Here,red-emitting Mg_(2)Al_(4)Si_(5)O_(18):Eu^(2+)ceramics as the phosphor wheel have been optimized in chemical compositions and texture orientation.The textured Mg_(2)Al_(4)Si_(5)O_(18):Eu^(2+)ceramics have high transparency and spot limiting ability,accordingly,the ceramic wheel outputs 1,184 lm of ultra-bright red light under 50 W/mm^(2) laser power density.Moreover,the red spectral utilization(over 600 nm)of textured Mg_(2)Al_(4)Si_(5)O_(18):Eu^(2+)ceramics is 2.17 times that of traditional Y_(3)Al_(5)O_(12):Ce^(3+)phosphor wheel.The red-emitting textured Mg_(2)Al_(4)Si_(5)O_(18):Eu^(2+)cordierite ceramic herein enables an improved light-color saturation experience,and it is potential in the next-generation laser phosphor display applications.

关 键 词：Luminescent materials Rare earth materials Textured ceramic Red emission Laser phosphor display 

分 类 号：TQ174.1[化学工程—陶瓷工业]