Energy Dissipation Pathways in Few-Layer MoS₂ Nanoelectromechanical Systems.

ABSTRACT: Free standing, atomically thin transition metal dichalcogenides are a new class of ultralightweight nanoelectromechanical systems with potentially game-changing electro- and opto-mechanical properties, however, the energy dissipation pathways that fundamentally limit the performance of these systems is still poorly understood. Here, we identify the dominant energy dissipation pathways in few-layer MoS₂ nanoelectromechanical systems. The low temperature quality factors and resonant frequencies are shown to significantly decrease upon heating to 293 K, and we find the temperature dependence of the energy dissipation can be explained when accounting for both intrinsic and extrinsic damping sources. A transition in the dominant dissipation pathways occurs at T ~ 110 K with relativel

SUBMITTER: Matis BR 

PROVIDER: S-EPMC5515974 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature