Nonlinear optical properties of CsPbCl_(x)Br_(3-x)nanocrystals embedded glass

作     者：CHENJING QUAN XIAO XING SIHAO HUANG MENGFEIFEI JIN TONGCHAO SHI ZEYU ZHANG WEIDONG XIANG ZHANSHAN WANG YUXIN LENG 

作者机构：School of Physics Science and EngineeringTongji UniversityShanghai 200092China State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser ScienceShanghai Institute of Optics and Fine Mechanics(SIOM)Chinese Academy of Sciences(CAS)Shanghai 201800China College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024China School of Physics and ElectronicsShandong Normal UniversityJinan 250014China 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2021年第9卷第9期

页      面：1767-1774页

核心收录：

学科分类：070207[理学-光学] 07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：National Natural Science Foundation of China(61520106012,61674023,61875211,61905264,61925507) National Key Research and Development Program of China(2017YFE0123700) Strategic Priority Research Program of the Chinese Academy of Sciences(XDB16030400) CAS Interdisciplinary Innovation Team Program of Shanghai Academic/Technology Research Leader(18XD1404200) Shanghai Municipal Science and Technology Major Project(2017SHZDZX02) 

主　　题：glass perovskite glasses 

摘      要：All-inorganic perovskite has attracted significant attention due to its excellent nonlinear optical *** and low-toxic perovskite materials have great application prospects in optoelectronic ***,we study the nonlinear optical properties of CsPbCl_(x)Br_(3-x)(x=1,1.5,2)nanocrystals(NCs)glass by open-aperture *** is found that the two-(2 PA)and three-photon absorption(3 PA)intensity can be adjusted by the treatment temperature and the ratio of halide *** perovskite NCs glass treated at a high temperature has better crystallinity,resulting in stronger nonlinear absorption *** addition,the value of the 2 PA parameter of CsPbCl_(1.5)Br_(1.5)NCs glasses decreases when the incident pump intensity increases,which is ascribed to the saturation of 2 PA and population ***,the research results show that the 2 PA coefficient(0.127 cm GW-1)and 3 PA coefficient(1.21×10^(-5)cm^(3)GW-2)of CsPbCl_(1)Br_(2)NCs glass with high Br anion content are larger than those of CsPbCl_(2)Br_(1)and CsPbCl_(1.5)Br_(1.5)NCs *** is mainly due to the greater influence of Br anions on the symmetry of the perovskite structure,which leads to the redistribution of delocalized *** revealed adjustable nonlinear optical properties of perovskite NCs glass are essential for developing stable and high-performance nonlinear optical devices.