visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나

Bandgap Engineering of Black Phosphorus

2016.11.08 17:02

Physics 조회 수:1432

날짜 2016-11-11 13:30 
일시 Nov. 11th(Fri), 1:30 p.m. 
장소 #1323(E6-2. 1st fl.) 
연사 Dr. Keun Su Kim, POSTECH 

Bandgap Engineering of Black Phosphorus

 

Nov. 11th(Fri), 1:30 p.m. #1323(E6-2. 1st fl.)
Dr. Keun Su Kim, POSTECH

 

Two-dimensional (2D) atomic crystals have emerged as a class of materials that may impact our future electronics technology. A key issue is controlling their electronic state to overcome the limit of natural properties. Black phosphorus is an emergent 2D atomic crystal that is attracting growing interest owing to its promising device characteristics1. In this talk, I will introduce our recent angle-resolved photoemission spectroscopy studies on the widely tunable bandgap of black phosphorus. The in-situ deposition of alkali-metal atoms on the surface of black phosphorus produces strong vertical electric field, modulating the bandgap from a narrow-gap semiconductor to a zero-gap semimetal2. At the critical point of this semiconductor-semimetal transition, black phosphorus is an unusual zero-gap semimetal, whose band dispersion is highly anisotropic, linear in armchair and quadratic in zigzag directions2. I will also briefly discuss about the future direction of this emerging field.


References
1. X. Ling et al., PNAS 112, 4523 (2014).
2. J. Kim et al., Science 349, 723 (2015).

 

Contact: MyungJoon Han, Physics Dept., (mj.han@kaist.ac.kr)

 

번호 날짜 장소 제목
공지 2022-10-24 16:00  E6 #1501(공동강의실)  Physics Colloquim(Fall 2022)
공지 2022-09-21 10:30  E6-1 #1501  [Update 세미나 영상] Distinguished Lecture 'The Magic of Moiré Quantum Matter' Prof. Pablo Jarillo-Herrero(Department of Physics, MIT)
공지 2022-10-28 11:00  E6-2 #1323  [Update 세미나영상] (응집물리 세미나) Machine-Learning-Guided Prediction models and Materials discovery for high Tc cuprates
공지 2022-10-07 11:00  E6-2 #1323  [Update 세미나 영상] (응집물리 세미나) Competing orders in a vanadium-based kagome metal monolayer
공지 2022-09-23 11:00  E6-2 #1323  [Update 세미나 영상] (응집물리 세미나) Steady Floquet-Andreev states in graphene Josephson junctions
공지 2022-09-22 11:00  E6-1 #1323  2022 가을학기 응집물리 및 광학 세미나 전체 일정
412 2014-05-28 17:00  KI Building, Matrix Hall  부품소재산업이 미래다
411 2022-11-25 11:00  E6-2 #1323  (응집물리 세미나) DMFT+ NRG: From models to real materials, from local to nonlocal correlations file
410 2022-03-21 16:00  E6, #1501  Multi-wavelength Studies on Relativistic Jets from Gamma-ray Bright Active Galactic Nuclei
409 2018-08-01 11:00  양분순 빌딩 (E16-1) 207호  Future of AI: Is the brain a computer? file
408 2020-09-11 14:00  zoom  SRC Seminar file
407 2022-11-24 16:00  E6-2 #1323  (광학분야 세미나) Non-Hermitian physics and non-Hermitian singularity
406 2022-05-02 16:00  E6, #1501  What can we learn from the history of science and technology?(우리말강의)
405 2022-04-28 16:00  E6 1323  (광학분야 특별세미나)Adiabaticity and symmetry in optical waveguide design
404 2009-02-23 16:00  E6, 1501  Physics Colloquium : 2009 Spring file
403 2014-03-10 16:00  E6, 1501  Physics Colloquium : 2014 Spring file
402 2022-04-14 16:00  E6 1323  (광학분야 특별세미나)Holographic tomography of dielectric tensors at optical frequency
401 2022-11-11 11:00  E6-2 #1323  (응집물리 세미나) Honeycomb oxide heterostructures for quantum spin liquid file
400 2022-03-07 16:00  E6, #1501  Climate Physics and Modelling(우리말강의)
399 2022-08-01 10:00  E6 #1501 & Zoom  [Update 세미나 영상] James Webb Space Telescope & OTE Commissioning
398 2022-10-27 16:00  E6-2 #1323  (광학분야 세미나) Cavity optomechanical systems for quantum transduction
397 2011-05-16 16:00  E6, 1501  Photonics with surface plasmon polaritons
396 2016-05-17 11:00  창의학습관(E11), 406호  The CERN Resonant WISP Search: Development, Results and Lesson-Learned
395 2013-09-09 16:00  E6, 1501  Physics Colloquium : 2013 Fall
394 2018-04-06 10:00  #2502, E6  Entanglement and thermalization in many-body systems: recent progress file