Broadband photochromic effect and photoluminescence modulation in rare-earth-doped(Pb,La)(Zr,Ti)O3 ceramics  

作　　者：Long Xu Ruiqi Zhu Caixia Xu 许龙;朱瑞琦;徐彩霞(School of Physical Science and Technology,Southwest University,Chongqing 400715,China;School of Primary Education,Chongqing Normal University,Chongqing 400700,China)

机构地区：[1]School of Physical Science and Technology,Southwest University,Chongqing 400715,China [2]School of Primary Education,Chongqing Normal University,Chongqing 400700,China

出　　处：《Chinese Optics Letters》2020年第9期41-45,共5页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (NSFC)(Nos. 61805206 and11804036);the Fund of China Scholarship Council(No. 201806995045)。

摘　　要：The broadband photochromic effect on undoped and rare-earth-doped lead lanthanum zirconate titanate(PLZT) ceramics was studied under the illumination of ultraviolet light at 360 nm. The photocarriers’ trapping and detrapping processes of thermal disconnected traps played the vital role in both darkening and bleaching processes. The interaction between photocarrier traps and rare-earth ion energy levels was demonstrated, which influenced the photochromatic darkening performance greatly. The transformation of photoluminescence spectra in Er3+-doped PLZT ceramics also improved the physical picture of the trap’s distribution of the materials.This work could be used to modulate the photoluminescence and lasing behavior.

关 键 词：photochromic effect darkening and bleaching process trapping and detrapping spectrum transformation 

分 类 号：TQ174.1[化学工程—陶瓷工业]