Mechanics and Multidisciplinary Study for Creating Graphene-based van der Waals Nano/microscale Devices

【作者】 郑泉水；

【机构】 清华大学；

【摘要】 <正>Elastic resonators have been the core elements for many types of nano-micro scale instruments and devices(e.g.gyroscope,mass and acceleration sensors,AFM,SNOM).A bottleneck challenge is their dramatically reduced quality factors as shrinking size due to the inevitable thermal dissipation in the elastic deforming mode.Van der Waals(vdW) oscillators invented recently[1]have the novel sliding motion mode in the micron-range that are retracted by the vdW interaction effectively in onlyl-nm range.Study has revealed that the latter has two orders of magnitude higher in both motion speed and quality factor,that are the two major multipliers contributing to the high-quality performance such as gyroscope.These features may promise a new class of various nano-micro devices.更多还原