Pressure-Induced Distinct Self-Trapped Exciton Emission in Sb^(3+)-Doped Cs_(2)NaInCl_(6)Double Perovskite  

作　　者：冯友佳 陈亚平 王乐瑶 王家祥 常断华 袁亦方 武敏 付瑞净 张丽丽 王庆林 王凯 郭海中 王玲瑞 Youjia Feng;Yaping Chen;Leyao Wang;Jiaxiang Wang;Duanhua Chang;Yifang Yuan;Min Wu;Ruijing Fu;Lili Zhang;Qinglin Wang;Kai Wang;Haizhong Guo;Lingrui Wang(Key Laboratory of Materials Physics(Ministry of Education),School of Physics,Zhengzhou University,Zhengzhou 450001,China;Shandong Key Laboratory of Optical Communication Science and Technology,School of Physics Science and Information Technology,Liaocheng University,Liaocheng 252059,China;College of Applied Physics and Materials,Wuyi University,Jiangmen 529020,China)

机构地区：[1]Key Laboratory of Materials Physics(Ministry of Education),School of Physics,Zhengzhou University,Zhengzhou 450001,China [2]Shandong Key Laboratory of Optical Communication Science and Technology,School of Physics Science and Information Technology,Liaocheng University,Liaocheng 252059,China [3]College of Applied Physics and Materials,Wuyi University,Jiangmen 529020,China

出　　处：《Chinese Physics Letters》2024年第6期18-43,共26页中国物理快报（英文版）

基　　金：supported by the National Key Research and Development Program of China(Grant Nos.2021YFA1400200 and2021YFA0718701);the National Natural Science Foundation of China(Grant Nos.U2032127,11904322,12104411,12174347);the Natural Science Foundation of Henan province of China(Grant No.202300410356);the China Postdoctoral Science Foundation(Grant Nos.2019M652560 and 2020M682326);the CAS Interdisciplinary Innovation Team(Grant No.JCTD-2019-01);the Postdoctoral Research Grant in Henan Province(Grant No.1902013);the Science Foundation for Highlevel Talents of Wuyi University(Grant No.2021AL019)。

摘　　要：The Cs_(2)NaInCl_(6) double perovskite is one of the most promising lead-free perovskites due to its exceptional stability and straightforward synthesis.However,it faces challenges related to inefficient photoluminescence.Doping and high pressure are employed to tailor the optical properties of Cs_(2)NaInCl_(6).Herein,Sb^(3+)doped Cs_(2)NaInCl_(6)(Sb^(3+):Cs_(2)NaInCl_(6)) was synthesized and it exhibits blue emission with a photoluminescence quantum yield of up to 37.3%.Further,by employing pressure tuning,a blue stable emission under a very wide range from 2.7 GPa to 9.8 GPa is realized in Sb^(3+):Cs_(2)NaInCl_(6).Subsequently,the emission intensity of Sb^(3+):Cs_(2)NaInCl_(6) experiences a significant increase(3.3 times)at 19.0 GPa.It is revealed that the pressure-induced distinct emissions can be attributed to the carrier self-trapping and detrapping between Cs_(2)NaInCl_(6) and Sb^(3+).Notably,the lattice compression in the cubic phase inevitably modifies the band gap of Sb^(3+):Cs_(2)NaInCl_(6).Our findings provide valuable insights into effects of the high pressure in further boosting unique emission characteristics but also offer promising opportunities for development of doped double perovskites with enhanced optical functionalities.

关 键 词：synthesis PEROVSKITE TRAPPING 

分 类 号：O469[理学—凝聚态物理]