Tunable interlayer excitons and switchable interlayer trions via dynamic near-field cavity

作     者：Yeonjeong Koo Hyeongwoo Lee Tatiana Ivanova Ali Kefayati Vasili Perebeinos Ekaterina Khestanova Vasily Kravtsov Kyoung-Duck Park Yeonjeong Koo;Hyeongwoo Lee;Tatiana Ivanova;Ali Kefayati;Vasili Perebeinos;Ekaterina Khestanova;Vasily Kravtsov;Kyoung-Duck Park

作者机构：Department of PhysicsPohang University of Science and Technology(POSTECH)Pohang37673Republic of Korea School of Physics and EngineeringITMO UniversitySaint Petersburg197101Russia Department of Electrical EngineeringUniversity at BuffaloNew YorkNY14260USA 

出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)

年 卷 期：2023年第12卷第3期

页      面：425-434页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：National Research Foundation of Korea(NRF)grant funded by the Korea government(MEST)(NRF-2020R1C1C1011301,2021R1A6A1A10042944,and NRF-2021R1A2C1008452) supported by the MSIT,Korea,under the ITRC support program(IITP-2022-RS-2022-00164799) IITP and supported by internal fund/grant of Electronics and Telecommunications Research Institute(ETRI)[21YB2100,Research on Device Technology of SiC-based Single Photon Sources for Quantum Cryptography] Samsung Science and Technology Foundation(SSTF-BA2102-05) COMPA funded by the MSIT(2023-22030003-30) Priority 2030 Federal Academic Leadership Program and the Ministry of Science and Higher Education of Russian Federation,goszadanie no.2019-1246.2D materials fabrication was funded by Russian Science Foundation,project 21-72-10100.V.P.acknowledges the support by the National Science Foundation under Grant No.2230727 

主　　题：interlayer dynamic tunable 

摘      要：Emerging photo-induced excitonic processes in transition metal dichalcogenide(TMD)heterobilayers,e.g.,interplay of intra-and inter-layer excitons and conversion of excitons to trions,allow new opportunities for ultrathin hybrid photonic ***,with the associated large degree of spatial heterogeneity,understanding and controlling their complex competing interactions in TMD heterobilayers at the nanoscale remains a ***,we present an all-round dynamic control of interlayer-excitons and-trions in a WSe_(2)/Mo_(0.5 )W_(0.5) Se_(2) heterobilayer using multifunctional tip-enhanced photoluminescence(TEPL)spectroscopy with20 nm spatial ***,we demonstrate the bandgap tunable interlayer excitons and the dynamic interconversion between interlayer-trions and-excitons,through the combinational tip-induced engineering of GPa-scale pressure and plasmonic hot electron injection,with simultaneous spectroscopic TEPL *** unique nano-opto-electro-mechanical control approach provides new strategies for developing versatile nano-excitonic/trionic devices using TMD heterobilayers.