visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2016-04-26 16:00 
일시 April 26 (Tue), 4PM 
장소 #1323(1st Floor. E6-2) 
연사 Dr. Myung-Ho Bae, Korea Research Institute of Standards and Science 

Transport spectroscopy for electronic bands in carbon-based nanomaterials with weak-bond contacts

 

April 26 (Tue), 4PM, #1323(1st Floor. E6-2)
Dr. Myung-Ho Bae, Korea Research Institute of Standards and Science

As a consequence of their unique electronic band structures, carbon-based nanomaterials (CNMs) such as carbon nanotubes and graphene exhibit intriguing quantum transports when incorporated into field-effect transistors (FETs) in which the contact resistance represents the coupling strength between the nanosystem and the bulk system.  Here, we report a new aspect of CNM quantum devices that offers transport spectroscopy in the tunnelling regime of ~1 eV and directly reflects the electronic density of states. This was accomplished using physisorption contacts with the CNMs. Our first-principles calculations reveal that charge transfer is rare between the physisorption-contacted electrodes and CNMs. Therefore, the physisorption-contacted electrode forms a physisorption interface with a considerable vacuum gap and causes little disruption to the density of states of the CNM near the contact.

 

Contact: Chan-Ho Yang, Physics Dept., (chyang@kaist.ac.kr)

번호 날짜 장소 제목
462 2019-08-22 16:00  #1323, E6-2  Physics and Applications in Nanoelectronics and Nonomechanics file
461 2019-07-30 16:00  #1323, E6-2  Dirac fermions and flat bands in correlated kagome metals file
460 2019-06-04 17:00  #1323, E6-2  Stochastic nature of bacterial eradication using antibiotics file
459 2019-04-19 11:00  #1323, E6-2  First-principles studies of semiconductors for solar cell applications file
458 2019-05-24 16:00  #1323, E6-2  Infrared spectroscopy study on metal-insulator transitions in layered perovskite iridates file
457 2019-05-09 16:00  #1323, E6-2  Quantum Optical Sensing Using Single Photons And Single Photon Emission from Single Emitters file
456 2019-05-09 16:00  #1323, E6-2  Quantum Optical Sensing Using Single Photons And Single Photon Emission from Single Emitters file
455 2019-04-23 16:00  #1323, E6-2  From Mott physics to high-temperature superconductivity file
454 2019-05-30 16:00  #1323, E6-2  Tuning the excitonic properties of semiconductors with light-matter interactions file
453 2019-04-11 16:00  #1323, E6-2  Massive screening for cathode active materials using deep neural network file
452 2019-04-04 16:00  #1323, E6-2  Chiral spin-photon interaction at nanoscale file
451 2018-09-20 16:00  #1323, E6-2  Toward Cancer Treatment Using Terahertz Radiation: Demethylation of Cancer DNA file
450 2018-09-20 16:00  #1323, E6-2  Toward Cancer Treatment Using Terahertz Radiation: Demethylation of Cancer DNA file
449 2019-04-26 16:00  #1323, E6-2  Robust Quantum Metrology using Strongly Interacting Spin Ensembles and Quantum Convolutional Neural Network file
448 2019-06-17 10:30  #1323, E6-2  Chiral Spintronics file
447 2019-05-01 16:00  #1323, E6-2  Raman and x-ray scattering study on correlated electron systems: two case examples file
446 2019-05-31 11:00  #1323, E6-2  Cavity QED with Spin Qubits file
445 2019-05-08 16:00  E6 Room(#1323)  Imaging valley dependent electron transport in 2D semiconductors file
444 2019-12-13 13:30  #1323, E6-2  Biophysics Mini-symposium at KAIST file
443 2018-07-09 14:00  #1323, E6-2  The principles of collective learning file