• 文献标题:   Graphene Ribbon Growth on Structured Silicon Carbide
  • 文献类型:   Article
  • 作  者:   STOHR A, BARINGHAUS J, APROJANZ J, LINK S, TEGENKAMP C, NIU YR, ZAKHAROV AA, CHEN CY, AVILA J, ASENSIO MC, STARKE U
  • 作者关键词:   epitaxial graphene, nanoribbon, silicon carbide, side wall, facet, leem, arpes, afm
  • 出版物名称:   ANNALEN DER PHYSIK
  • ISSN:   0003-3804 EI 1521-3889
  • 通讯作者地址:   Max Planck Inst Festkorperforschung
  • 被引频次:   4
  • DOI:   10.1002/andp.201700052
  • 出版年:   2017

▎ 摘  要

Structured Silicon Carbide was proposed to be an ideal template for the production of arrays of edge specific graphene nanoribbons (GNRs), which could be used as a base material for graphene transistors. We prepared periodic arrays of nanoscaled stripe-mesas on SiC surfaces using electron beam lithography and reactive ion etching. Subsequent epitaxial graphene growth by annealing is differentiated between the basal-plane mesas and the faceting stripe walls as monitored by means of atomic force microscopy (AFM). Microscopic low energy electron diffraction (-LEED) revealed that the graphene ribbons on the facetted mesa side walls grow in epitaxial relation to the basal-plane graphene with an armchair orientation at the facet edges. The -band system of the ribbons exhibits linear bands with a Dirac like shape corresponding to monolayer graphene as identified by angle-resolved photoemission spectroscopy (ARPES).