Induced circularly polarized luminescence of perovskite nanocrystals by self-assembly chiral gel

作     者：Rui Cao Xuekang Yang Yong Wang Yin Xiao Rui Cao;Xuekang Yang;Yong Wang;Yin Xiao

作者机构：School of ScienceTianjin UniversityTianjin 300350China School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350China National Center for Nanoscience and TechnologyBeijing 100190China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第1期

页      面：1459-1464页

核心收录：

学科分类：07[理学] 070303[理学-有机化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：We gratefully acknowledge the financial support from the National Natural Science Foundation of China(Nos.21976131 and 21922409). 

主　　题：circularly polarized light(CPL) chiral gel CsPbX3 perovskite nanocrystal selective CPL-absorption 

摘      要：Perovskites nanocrystals(NCs)with circularly polarized light(CPL)activity have drawn much attention due to the fascinating photoelectric properties of perovskite NCs as well as the abundant applications of CPL in three-dimensional(3D)displays,nonlinear optics,spintronics devices,CPL lasers,and so on.Herein,bio-inspired by life,we designed and synthesized a simple amphiphilic molecule which could self-assemble into chiral gel with helix chirality in non-polar solvents.Through co-assembly of the CsPbX3 NCs with the chiral gel,CPL at the first excitation band of CsPbX3 NCs is induced in the whole visible spectrum with a maximum glum of 8.2×10−3.The induced CPL arises from the selective CPL-absorption of the CsPbX3 NCs’luminesce by the chiral gel,which provides a facile and practical approach to induce CPL in perovskite NCs and other nanocrystals.