摘要
制备具有强发光性、高稳定性、低毒性的白色光致发光块体玻璃对LED显示技术的进步具有重要意义。本文利用溶胶凝胶法制备了不同组分的Al_(2)O_(3)-xSiO_(2)块体干凝胶,在约500℃烧结的过程中,玻璃表现出强烈的白色可见光致发光宽峰,该宽峰来自孔表面的自由基羰基末端缺陷,并且其发光强度与自由基缺陷的浓度和发光强度有明显关系。
The preparation of block glass with characteristics such as strong white emission photoluminescence,high stability,and low toxicity is of great significance to the progress of LED display technology.In this study,we prepared Al_(2)O_(3)-xSiO_(2) block xerogels of different components using the sol-gel method.During sintering at about 500℃,the glass exhibits a strong white visible photoluminescence wide peak due to the radical carbonyl-terminations defects from the pore surface,and the luminous intensity is obviously related with the concentration and luminous intensity of radical defects.
作者
陈蓓曦
刘欣
Chen Beixi;Liu Xin(Queen Mary University of London Engineering School,Northwestern Polytechnical University,Xi’an 710072,Shaanxi,China;Luoyang Institute of Electro-Optical Equipment,AVIC,Luoyang 471000,Henan,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2023年第15期279-281,共3页
Laser & Optoelectronics Progress
关键词
材料
光致发光
缺陷发光
白光发射
介孔玻璃
materials
photoluminescence
defect luminescence
white light emission
mesoporous glass
