Frequency Tuning in Resonant Nano-Electromechanical Devices Based on Anisotropic Two-Dimensional Semiconductor Rhenium Disulfide

We demonstrate NEMS resonators based on anisotropic 2D semiconductor ReS2. The devices exhibit clear, electrically tunable mechanical resonances under both optothermal and electrostatic excitations, with frequency tuning range exceeding 100%. Our finding enables exploration of interplay between mechanical anisotropy and resonant responses in these atomically-thin semiconductors.