logo

korean english

게시판

Home > 게시판 > 세미나

아래와 같이 콜로퀴움을 개최하오니 많이 참석해 주시기 바랍니다.

4시 20분부터 제1과학관 31214 e+강의실에서 다과를 준비하오니 많은 참석 부탁드립니다

 

아 래

 

제목: SPM Study of CVD Graphene on h-BN Film

연사: 송  영  재  교수님 (성균관대학교 SAINT, 물리학과)

  

일시: 2013년 10월 16일(수) 오후4:30

 

장소: 제1과학관 31214  e+첨단강의실 

 

초록: As an ideal substrate for graphene, hexagonal boron nitride (h-BN) has been utilized and studied extensively by transfer technique, which still has a high chance to have impurities at the graphene/h-BN interface. Here we present our Scanning Tunneling Microscopy (STM) and Spectroscopy (STS) study for atomic and electronic structure of CVD-grown graphene on h-BN film. High resolution STM image shows perfect honeycomb lattice structure of graphene on top surface and Moiré pattern indicating the structural interference patter with the underlying h-BN crystal. Non-disturbed electronic structure of graphene on h-BN film is also confirmed by spatially-resolved STS measurements, which show very sharp and symmetric V shape with a Dirac point at Fermi level. To confirm the graphene growth mechanism on h-BN film/Cu foil, careful Atomic Force Microscopy (AFM) and Kelvin Probe Force Microscopy (KPFM) measurements were performed on different thickness of h-BN film on a SiO2 substrate to unveil the catalytic origin of graphene growth on h-BN/Cu. These experimental results can explain the thickness dependence on the quality and coverage of graphene CVD-grown on h-BN/Cu.
 

번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1021164
286 <3/12> Nano Structure of wide Band Gap Semiconductors 2010.03.08 88537
» <10/16> SPM Study of CVD Graphene on h-BN Film 2013.10.04 88348
284 <4/11> 방사광 연 X선을 이용한 미시적 물성 연구 2008.04.07 88315
283 2015학년도 2학기 콜로퀴움 일정 2015.08.06 88059
282 <10/5> Acoustic Metamaterials and Reversal of Sound 2011.09.26 88043
281 <3/21> 우주가속팽창의 원인 규명 2012.03.15 87950
280 <10/13> What has happened in the beginning of the universe? 2006.10.11 87724
279 <4/9> Quantum oscillations at the LHC 2014.04.03 87683
278 영어초록 예시 2008.03.18 87637
277 <6/12> Latest Results from the IceCube Neutrino Observatory 2013.06.07 87365
276 <4/10> Mapulation of spins in organic compounds 2013.04.03 87198
275 <12/7>유럽입자물리연구소에서의 CMS 실험 2007.12.03 86874
274 <9/19> Novel mechanical degree of freedom at nanoscales 2012.09.13 86848
273 <11/20> Particle Accelerators: Driving Forces for Energy 2009.11.16 86733
272 2007학년도 2학기 콜로키엄 schedule 안내 2007.09.27 86658
271 <4/16>같은 곳을 바라보는 다른 시선 2010.04.09 86177
270 <5/12> An Infrared View of the Universe 2006.05.09 86125
269 2011학년도 2학기 콜로퀴움 일정 안내 2011.08.22 85978
268 <3/26> Shedding infrared light on high-Tc superconductors 2014.03.19 85755
267 <4/3>Enhanced emission rate from a single quantum well using surface plasmon 2009.03.31 85744