Carbon Based Nano Electromechanics: Physics and Applications

Date: 
10/11/2022 - 3:30pm
Location: 
Chemistry-Physics Bldg. Room 179
Speaker(s) / Presenter(s): 
Sang Wook Lee
Carbon Based Nano Electromechanics: Physics and Applications
 
Sang Wook Lee
 
Department of Physics, Ewha Womans University, Seoul, 03760, Korea
 
In this presentation, physical properties and possible applications of carbon based nano electro-mechanical devices
(NEMS) will be introduced. Our research started from carbon nanotube based nano electro-mechanical relay
structure and expanded to graphene-based xylophone and drum like devices. Micro contact transfer method is
applied to realize the suspended nano structures with various electrodes under the nano materials. Recently
developed pick-up and transfer technique made us possible to fabricate various stacking and suspended nano
structures. After introducing some interesting physical properties, such as basic mechanical switching and
resonance behaviour and light emission of suspended graphene structures, possible application of carbon based
nano electro-mechanical devices will be suggested. Graphene based ultra-sensitive mass detector will be suggested
for one of the promising applications of our devices and our recent research project on single protein sequencing
using graphene-based mass detector will be introduced at the end of presentation.