Broadband photochromic effect and photoluminescence modulation in rare-earth-doped (Pb,La) (Zr,Ti)O3 ceramics
Broadband photochromic effect and photoluminescence modulation in rare-earth-doped (Pb,La) (Zr,Ti)O3 ceramics
复制标题
稀土掺杂(Pb,La)(Zr,Ti)O-3陶瓷的宽带光致变色效应和光致发光调制
DOI：
10.3788/col202018.091403
复制
发表时间：
2020-09-10
影响因子：
3.5
通讯作者：
Xu, Caixia
中科院分区：
文献类型：
--
作者：
Xu, Long;Zhu, Ruiqi;Xu, Caixia
研究了未掺杂和稀土掺杂的锆钛酸铅镧（PLZT）陶瓷在360 nm紫外光照射下的宽带光致变色效应。热不连续陷阱的光生载流子俘获和释放过程在暗化和漂白过程中起着至关重要的作用。研究表明，光生载流子陷阱与稀土离子能级之间存在相互作用，对光色暗化性能有很大影响。掺Er ~（3+）的PLZT陶瓷光致发光光谱的转变也改善了材料陷阱分布的物理图像。这项工作可用于调制光致发光和激光行为。
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.