• 메인
  • >
  • 소식
  • >
  • 세미나

Bandgap Engineering of Black Phosphorus

2016.11.08 17:02

Physics 조회 수:322

장소 #1323(E6-2. 1st fl.) 
일시 Nov. 11th(Fri), 1:30 p.m. 
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.

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


Contact: MyungJoon Han, Physics Dept., (


번호 일시 장소 연사 제목
공지 2017/03/06 - 05/29  Seminar Room 1501  이종봉 박사 (POSTECH) 외  Spring 2017: Physics Colloquium
공지 2017/03/21 - 06/08  Seminar Room 1323  조길영 박사(KAIST) 외  Spring 2017: Physics Seminar Serises
128 5월 17일(화), 11:00 ~ 12:00  창의학습관(E11), 406호  방준혁 박사(Korea Basic Science Institute, KBSI)  The CERN Resonant WISP Search: Development, Results and Lesson-Learned
127 Apr. 27, 2017 (Thu) 4:00 pm  Seminar Room(#1323, E6-2)  Prof.Donghan Lee (Chungnam National Univ.)  반도체 양자점을 이용한 단광자 광원
126 Jun. 14 (Tue) 4PM  Seminar Room (#2502, 2nd fl.)  Young-Sik Ra, Université Pierre et Marie Curie  Photonic quantum network based on multimode squeezed vacuums and single-photon subtraction
125 Nov. 1 (Tue.) 2:30 pm  Seminar Room #1323(E6-2)  Prof. Youngjoon Kwon, Yonsei Univ.  Search for dark sector particles in the B-factory experiments
124 2015/06/03, 12PM  Room 101, E11  Prof. Min-Kyo, Seo & Hansuek, Lee(KAIST)  The First Wednesday Multidisciplinary Forum file
123 April 5th 2017, 12:00 ~ 13:00  Room 101, Creative Learning Bldg.(E11)  Prof. Wonho Choe(Dept. of Physics),Prof. Young-chul GHIM(Dept. of Nuclear & Quantum Engineering)  2017년 4월 첫수 융합포럼 개최 안내(물리학과 & 원자력 및 양자공학과 공동 개최)/The First Wednesday Multidisciplinary Forum in April 2017 organized by Dept. of Physics & Dept. of Nuclear & Quantum Engineering file
122 2016/09/05-12/12 4PM  Natual Scien Bldg.(E6)m #1501  Yeong Kwan Kim 외  Physics Colloquium : 2016 Fall file
121 May 19, 2016 (Thur.) 3PM  May 19, 2016 (Thur.) 3PM,  Dr. Michael Betz, CERN  The CERN Resonant WISP Search: Development, Results and Lesson-Learned
120 2017.1.9(Mon), 4PM  Lecture Hall, College of Natural Sciences [#1501,E6-2]  Prof. John Michael Kosterlitz, Brown University  Topological Defects and Phase Transitions" file
119 4월 18일(월), 15:30~  KI빌딩(E4), 강의실 B501 (5F)  Prof. Robert A. DiStasio Jr. (Cornell University)  First Principles Approaches for Intermolecular Interactions: From Gas-Phase Dimers to Liquid Water and Molecular Crystal Polymorphism file
118 2014/05/28, PM5  KI Building, Matrix Hall  이웅범 대표이사(LG이노텍)  부품소재산업이 미래다
117 Aug. 4, 2016 (Thu.), 2:30 pm  KAIST Natural Science Building (E6-5), EDU 3.0 Room(1st fl.)  Prof. Argyris Nicolaidis  Relational Logic (with applications to Quantum Mechanics, String Theory, Cosmology, Neutrino Oscillations, Statistical Mechanics)
116 April 4, 2016 (Mon) - April 8, 2016 (Fri)  KAIST Natural Science Building (E6-2), RM #4314  Dr. Fritz Caspers (CERN)  Radio frequency engineering
115 2015/10/14, 6PM  KAIST Munji Campus Supex Hall  이창환 교수 (부산대학교 물리학과)  인터스텔라 영화 속의 물리 file
114 April 6, 2017 (Thu), 4:00 pm  IBS CAPP seminar room, Creation Hall (3F), KAIST Munji Campus  Prof. Youngjoon Kwon (Yonsei University)  For whom the Belle tolls
113 May 13 (Fri.) 4 PM  E6. #1501(1st fl.)  Dr. Hosub Jin, Dept. of Physics, UNIST  Graphene analogue in (111)- BaBiO3 bilayer heterostructures for topological electronics
112 May 13 (Fri.), 1:30 PM  E6. #1501(1st fl.)  Dr. Young-Woo Son, Dept. of Physics, KIAS  Aperiodic crystals in low dimensions
111 Apr. 08 (Fri.), 4:00 PM  E6-2. 5st fl. #1501  Dr. Changyoung Kim, SEOUL NATIONAL UNIV.  Spectroscopic studies of iron-based superconductors : what have we learned?