文献类型：期刊文献

中文题名：Scale effect of circularly polarized luminescent signal of matter

作者：Siyu Sun[1];Xiaolin Li[2];Chen Xu[1];Yan Li[1];YongZhen Wu[1];Ben L.Feringa[1,3];He Tian[1];Xiang Ma[1]

机构：[1]Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center,Frontiers Science Center for Materiobiology and Dynamic Chemistry,School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China;[2]School of Physics,East China University of Science and Technology,Shanghai 200237,China;[3]Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials,Faculty of Science and Engineering,University of Groningen,Groingen,AG9747 Netherlands

年份：2023

卷号：10

期号：5

起止页码：226

中文期刊名：National Science Review

外文期刊名：国家科学评论（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2023_2024】；PubMed;

基金：financial support from the National Key Research and Development Program of China(2022YFB3203500);the National Natural Science Foundation of China(21788102,22125803,22020102006 and 61835013);the Shanghai Municipal Science and Technology Major Project(2018SHZDZX03);the Program of Shanghai Academic/Technology Research Leader(20XD1421300);the Fundamental Research Funds for the Central Universities;financial support from the Natural Science Foundation of Shanghai(20ZR1414300);financial support from the Netherlands Ministry of Education,Culture and Science(Gravitation Program 024.001.035)。

语种：英文

中文关键词：scale effect;circularly polarized luminescent;chirality;quantum dots;perovskite

摘要：Circularly polarized luminescence(CPL)is an important part in the research of modern luminescent materials and photoelectric devices.Usually,chiral molecules or chiral structures are the key factors to induce CPL spontaneous emission.In this study,a scale-effect model based on scalar theory was proposed to better understand the CPL signal of luminescent materials.Besides chiral structures being able to induce CPL,achiral ordered structures can also have a significant influence on CPL signals.These achiral structures are mainly reflected in the particle scale in micro-order or macro-order,i.e.the CPL signal measured under most conditions depends on the scale of the ordered medium,and does not reflect the inherent chirality of the excited state of the luminescent molecule.This kind of influence is difficult to be eliminated by simple and univers al strategies in macro-measurement.At the same time,it is found that the measurement entropy of CPL detection may be the key factor to determine the isotropy and anisotropy of the CPL signal.This discovery would bring new opportunities to the research of chiral luminescent materials.This strategy can also greatly reduce the development difficulty of CPL materials and show high application potential in biomedical,photoelectric information and other fields.