Observation of moiré excitons in the twisted WS<sub>2</sub>/WS<sub>2</sub> homostructure
Biao Wu, Haihong Zheng, Shaofei Li, Junnan Ding, Yu‐Jia Zeng, Zongwen Liu, Yanping Liu
Abstract
T-HS with a twist angle of about 1.5°. The PL spectrum of the T-HS region shows many small peaks with nearly constant peak spacing, which is attributed to the reconstructed moiré potential generated by the reconstructed moiré pattern to confine the intralayer excitons, thereby forming an ordered moiré exciton array. Furthermore, we have studied the influence of temperature and laser power on the moiré excitons as well as the valley polarization of the moiré excitons. Our results provide a promising prospect for further exploration of artificial excitonic crystals and quantum emitters of TMD moiré patterns.
Topics & Concepts
Moiré patternExcitonMaterials scienceOptoelectronicsOpticsPhysicsCondensed matter physics2D Materials and ApplicationsMXene and MAX Phase MaterialsPerovskite Materials and Applications