BROWSE

Related Scientist

Researcher

임현섭
다차원 탄소재료 연구단
more info

Structurally driven one-dimensional electron confinement in sub-5-nm graphene nanowrinkles

Cited 24 time in webofscience Cited 0 time in scopus
220 Viewed 69 Downloaded
Title
Structurally driven one-dimensional electron confinement in sub-5-nm graphene nanowrinkles
Author(s)
Hyunseob Lim; Jung, J.; Rodney S. Ruoff; Kim, Y.
Publication Date
2015-10
Journal
NATURE COMMUNICATIONS, v.6, no., pp.8601 -
Publisher
NATURE PUBLISHING GROUP
Abstract
Graphene-based carbon materials such as fullerenes, carbon nanotubes, and graphenes have distinct and unique electronic properties that depend on their dimensionality and geometric structures. Graphene wrinkles with pseudo one-dimensional structures have been observed in a graphene sheet. However, their one-dimensional electronic properties have never been observed because of their large widths. Here we report the unique electronic structure of graphene nanowrinkles in a graphene sheet grown on Ni(111), the width of which was small enough to cause one-dimensional electron confinement. Use of spatially resolved, scanning tunnelling spectroscopy revealed bandgap opening and a one-dimensional van Hove singularity in the graphene nanowrinkles, as well as the chemical potential distribution across the graphene nanowrinkles. This observation allows us to realize a metallic-semiconducting-metallic junction in a single graphene sheet. Our demonstration of one-dimensional electron confinement in graphene provides the novel possibility of controlling its electronic properties not by chemical modification but by 'mechanical structuring'. © 2015 Macmillan Publishers Limited. All rights reserved
URI
http://pr.ibs.re.kr/handle/8788114/2291
DOI
10.1038/ncomms9601
ISSN
2041-1723
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
Files in This Item:
3. 2-s2.0-84945296420.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse