Chemomechanical modification of quantum emission in monolayer WSe₂.

ABSTRACT: Two-dimensional (2D) materials have attracted attention for quantum information science due to their ability to host single-photon emitters (SPEs). Although the properties of atomically thin materials are highly sensitive to surface modification, chemical functionalization remains unexplored in the design and control of 2D material SPEs. Here, we report a chemomechanical approach to modify SPEs in monolayer WSe₂ through the synergistic combination of localized mechanical strain and noncovalent surface functionalization with aryl diazonium chemistry. Following the deposition of an aryl oligomer adlayer, the spectrally complex defect-related emission of strained monolayer WSe₂ is simplified into spectrally isolated SPEs with high single-photon purity. Density functional

SUBMITTER: Utama MIB 

PROVIDER: S-EPMC10110606 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature