• 文献标题:   Identifying and characterizing epitaxial graphene domains on partially graphitized SiC(0001) surfaces using scanning probe microscopy
  • 文献类型:   Article
  • 作  者:   KELLAR JA, ALABOSON JMP, WANG QH, HERSAM MC
  • 作者关键词:   atomic force microscopy, domain, epitaxial layer, graphene, graphitisation, pyrolysi, scanning tunnelling microscopy, silicon compound, surface reconstruction, wide band gap semiconductor
  • 出版物名称:   APPLIED PHYSICS LETTERS
  • ISSN:   0003-6951 EI 1077-3118
  • 通讯作者地址:   Northwestern Univ
  • 被引频次:   34
  • DOI:   10.1063/1.3378684
  • 出版年:   2010

▎ 摘  要

Scanning tunneling microscopy (STM), atomic force microscopy (AFM), lateral force microscopy (LFM), and conductive AFM (cAFM) are employed to characterize epitaxial graphene on SiC(0001). Of particular interest are substrates that possess single-layer and bilayer graphene domains, which form during thermal decomposition of silicon from SiC(0001). Since these samples are often partially graphitized, characterization techniques are needed that can distinguish domains of epitaxial graphene from the adjacent (6 root 3x6 root 3)R30 degrees reconstructed SiC(0001) surface. The relative merits of STM, AFM, LFM, and cAFM for this purpose are outlined, thus providing nanometer-scale strategies for identifying and characterizing epitaxial graphene.