Speaker
Description
Recent studies of moiré physics in bilayer transition-metal dichalcogenides (TMDs) have largely focused on interlayer excitons, whose photoluminescence (PL) is typically weak and thus less suitable for quantum photonics applications. Here, we demonstrate that intralayer moiré excitons can be formed in a heterostructure composed of insulating Mg(OH)$_2$ and monolayer(ML) MoSe$_2$. Zero twist-angle PL and differential reflectance (DR) spectra reveal distinct moiré exciton features, signifying the formation of intralayer moiré states. Further experiments, including spatial mapping, power-dependent, and polarization-resolved PL spectroscopy, confirm that these moiré excitons exhibit robust interband optical transitions and high emission brightness. Our results establish intralayer moiré excitons as a promising and tunable light-emitting platform, paving the way for future optoelectronic and quantum photonic applications.