How defects influence the photoluminescence of TMDCs

作     者：Mengfan Zhou Wenhui Wang Junpeng Lu Zhenhua Ni Mengfan Zhou;Wenhui Wang;Junpeng Lu;Zhenhua Ni

作者机构：School of Physics and Key Laboratory of MEMS of the Ministry of EducationSoutheast UniversityNanjing 211189China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2021年第14卷第1期

页      面：29-39页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：the National Key R&D Program of China(Nos.2017YFA 0205700,2019YFA 0308000) the National Natural Science Foundation of China(NSFC)(Nos.61774034,91963130,11704068,61705106) Jiangsu Natural Science Foundation(No.BK20170694).The project is supported by"the Fundamental Research Funds for the Central Universities" 

主　　题：two-dimensional material transition metal dichalcogenides(TMDCs) photoluminescence(PL) defect defect engineering quantum yield(QY) 

摘      要：Two-dimensional(2D)transition metal dichalcogenide(TMDC)monolayers,a class of ultrathin materials with a direct bandgap and high exciton binding energies,provide an ideal platform to study the photoluminescence(PL)of light-emitting *** thin TMDCs usually contain various defects,which enrich the lattice structure and give rise to many intriguing *** the influences of defects can be either detrimental or beneficial,a comprehensive understanding of the internal mechanisms underlying defect behaviour is required for PL ***,recent advances in the defect influences on PL emission are summarized and *** mechanisms are the focus of this review,such as radiative/nonradiative recombination kinetics and band structure *** challenges and opportunities are present in the field of defect manipulation,and the exploration of mechanisms is expected tofacilitate the applications of 2D TMDCs in the future.