visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2017-03-24 16:00 
일시 Mar. 24 (Fri.), 4:00 PM 
장소 #1323 (1st fl. E6-2) 
연사 Dr. SangWook Lee 

Graphene based nano electronics and nano electromechanics; focusing on precise control of nano structures for studying accurate physical properties

 

Dr. SangWook Lee

Department of Physics, Ewha Womans University

 

Mar. 24 (Fri.), 4:00 PM

#1323 (1st fl. E6-2)

 

Abstract:

In this presentation, we will present our recent progress on the fabrication and characterization of graphene based nano electronic and electromechanical devices. Mirco contact transfer method have been utilized for controlling the position of nano materials so that various 2 dimensional and 3 dimensional device structures could be realized. At first, the interlayer transport properties of twisted bilayer graphene will be introduced. The temperature dependent electrical properties showed that there is intriguing correlation to quantum coherence with inter-layer distances of graphene. Based on the previous result, we will show our plan to control the distance of two layers in reversible way so that interlayer coupling can be precisely controlled during transport measurement. Mechanical and electromechanical properties of xylophone like suspended graphene ribbon arrays will be presented in the second part. Basic mechanical and electromechanical properties of suspended graphene structures studied by our group will be reported. Our idea to improve the mass change detection sensitivity and to investigate quantum mechanical properties of nano mechanical resonators will be shared in the end of this presentation.

 

Contact: SunYoung Choi (sunyoungchoi@kaist.ac.kr)

번호 날짜 장소 제목
162 2022-10-04 16:00  E6 #2501  Distinguishing 6d (1, 0) SCFTs
161 2022-03-29 10:00  E6 #1501/zoom, E6 #2502/zoom  Non-reciprocal phase transitions file
160 2022-03-31 10:00  E6 #1501/zoom  Weiss fields for Quantum Spin Dynamics file
159 2022-01-25 15:00  E6 #1501/online  Emulating twisted double bilayer graphene with a multiorbital optical lattice file
158 2022-10-24 16:00  E6 #1501(공동강의실)  Physics Colloquim(Fall 2022) file
157 2022-07-14 14:15  E6 #1501 & Zoom  Hund and electronic correlations in ruthenium-based systems
156 2022-08-01 10:00  E6 #1501 & Zoom  [Update 세미나 영상] James Webb Space Telescope & OTE Commissioning
155 2022-07-14 13:30  E6 #1501 & Zoom  Electronic structure and anomalous transport properties of topological materials by first principle calculation
154 2022-07-14 15:00  E6 #1501 & Zoom  Pure two-dimensional quantum electron liquid and its phase transition
153 2022-01-11 15:00  E6 #1501  Ultrafast optical studies on CDW collective modes of the Weyl-CDW (TaSe4)2I file
152 2022-01-26 13:00  E6 #1501  An Introduction to Cohomology groups file
151 2022-04-13 10:30  E6 #1323/zoom  Harnessing topology and correlations from singularities in 3d-kagome metals
150 2023-05-17 14:00  E6 #1323  Optical Response in the multilayer thin films
149 2023-04-28 11:00  E6 #1323  Tkachenko wave: From the modern field theory viewpoint
148 2022-10-06 13:00  E6 #1323  Counting States with Global Symmetry
147 2015-07-23 13:30  E4, B401  Enhanced ZnO based UV photonics and related applications file
146 2015-12-17 11:00  E4(KI Building), Matrix Hall (2nd fl.)  Wavefront engineering for in-vivo Deep brain imaging
145 2015-12-09 11:00  E4(KI Building), Connect room (2nd fl.)  Functional Imaging & Monitoring of Brain & Breast with Diffuse Light
144 2015-03-13 14:00  Connect Room, KI Bldg.  The 15th Innovative Workshop on Soft/Bio Materials file
143 2022-09-21 16:00  College of Natural Science E6-2, Rm. 1323  Materials and Device Nanofabrication of Optical Metasurfaces file