Carbon Based Nanoelectromechanics: Physics and Applications

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 behavior 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 recently accepted HFSP project based on this subject will be introduced at the end of presentation.

Biography: Dr. Sang Wook Lee is a Professor of Physics at Ewha Womans University in South Korea. He earned his undergraduate, master’s and PhD degrees in Physics from Seoul National University. He did postdoctoral training at Gothenburg University, Sweden. Dr. Lee’s main research interests lie in nano transport and nano electromechanical systems and nano mechanical device development. He received many awards including Korea’s Frontier Scientist and Applied Physics Research Award.