Stepwise Crystalline Structural Transformation in 0D Hybrid Antimony Halides with Triplet Turn-on and Color-Adjustable Luminescence Switching  

作　　者：Jian-Qiang Zhao Yue-Yu Ma Xue-Jie Zhao Yu-Jia Gao Zi-Yan Xu Pan-Chao Xiao Cheng-Yang Yue Xiao-Wu Lei 

机构地区：[1]School of Chemistry,Chemical Engineer and Materials,Jining University,Qufu,Shandong 273155,P.R.China

出　　处：《Research》2023年第4期485-497,共13页研究（英文）

基　　金：This work was supported by the National Natural Sci-ence Foundation of China(22171105);Shandong Provincial Natural Science Foundation(ZR2020KB012,ZR2021MB001,and ZR2022YQ14);Fund of state key laboratory of structural chemistry(20210015);Special Foundation of Taishan Scholar Project。

摘　　要：Intelligent stimuli-responsive fluorescence materials are extremely pivotal for fabricating luminescent turn-on switching in solid-state photonic integration technology,but it remains a challenging objective for typical 3-dimensional(3D)perovskite nanocrystals.Herein,by fine-tuning the accumulation modes of metal halide components to dynamically control the carrier characteristics,a novel triple-mode photoluminescence(PL)switching was realized in 0D metal halide through stepwise single-crystal to single-crystal(SC-SC)transformation.Specifically,a family of 0D hybrid antimony halides was designed to exhibit three distinct types of PL performance including nonluminescent[Ph_(3)EtP]_(2)Sb_(2)Cl_(8)(1),yellowemissive[Ph3EtP]2SbCl5·EtOH(2),and red-emissive[Ph_(3)EtP]_(2)SbCl_(5)(3).Upon stimulus of ethanol,1 was successfully converted to 2 through SC-SC transformation with enhanced PL quantum yield from~0%to 91.50%acting as“turn-on”luminescent switching.Meanwhile,reversible SC-SC and luminescence transformation between 2 and 3 can be also achieved in the ethanol impregnation-heating process as luminescence vapochromism switching.As a consequence,a new triple-model turn-on and coloradjustable luminescent switching of off-onI-onII was realized in 0D hybrid halides.Simultaneously,wide advanced applications were also achieved in anti-counterfeiting,information security,and optical logic gates.This novel photon engineering strategy is expected to deepen the understanding of dynamic PL switching mechanism and guide development of new smart luminescence materials in cutting-edge optical switchable device.

关 键 词：LUMINESCENCE HALIDE Transformation 

分 类 号：O61[理学—无机化学]