介孔Al_(2)O_(3)-SiO_(2)玻璃中自由基羰基末端缺陷的白色光致发光性能研究  

Study on White Photoluminescence Properties of Radical Carbonyl-Terminations Defects in Mesoporous Al_(2)O_(3)-SiO_(2) Glass

作　　者：陈蓓曦 刘欣[2] 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)

机构地区：[1]西北工业大学伦敦玛丽女王大学工程学院,陕西西安710072 [2]中国航空工业集团公司洛阳电光设备研究所,河南洛阳471000

出　　处：《激光与光电子学进展》2023年第15期279-281,共3页Laser & Optoelectronics Progress

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.

关 键 词：材料 光致发光 缺陷发光 白光发射 介孔玻璃 

分 类 号：O436[机械工程—光学工程]