• 文献标题:   Surface morphology control of the SiC (0001) substrate during the graphene growth
  • 文献类型:   Article
  • 作  者:   LEBEDEV SP, AMEL CHUK DG, ELISEYEV IA, BARASH IS, DEMENTEV PA, ZUBOV AV, LEBEDEV AA
  • 作者关键词:   silicon carbide, graphene, afm, kpfm, raman spectroscopy
  • 出版物名称:   FULLERENES NANOTUBES CARBON NANOSTRUCTURES
  • ISSN:   1536-383X EI 1536-4046
  • 通讯作者地址:   Ioffe Inst
  • 被引频次:   1
  • DOI:   10.1080/1536383X.2019.1697688 EA DEC 2019
  • 出版年:   2020

▎ 摘  要

The dependence of surface morphology of the SiC(0001) substrate on the rate with which it is heated up to the temperature of graphene growth was studied by three techniques: atomic force microscopy, Raman spectroscopy and Kelvin probe force microscopy. The study was carried out for the rates of substrates heating ranging from 100 degrees C/min to 320 degrees C/min. As a result, it was found out that both the width of the terraces forming on the surface of SiC substrate and the uniformity of the graphene layers covering these terraces significantly depend on the applied rate of the heating. It was also shown that the most homogeneous monolayer graphene with the minimum of double-layers inclusions is formed if the rate of SiC heating is about 250 degrees C/min.