• 文献标题:   Interaction between Yb3+ doped glasses substrates and graphene layers by raman spectroscopy
  • 文献类型:   Article
  • 作  者:   CAMPANELLI DA, MENEZES JW, VALSECCHI C, ZEGARRA LBR, JACINTO C, ARMAS LEG
  • 作者关键词:   raman spectroscopy, graphene interaction, ytterbium substrate, rare earth substrate, doping effect
  • 出版物名称:   THIN SOLID FILMS
  • ISSN:   0040-6090 EI 1879-2731
  • 通讯作者地址:   Univ Fed Pampa
  • 被引频次:   0
  • DOI:   10.1016/j.tsf.2020.138315
  • 出版年:   2020

▎ 摘  要

We report the interaction between 5.0 wt.% and 20 wt.% Yb3+ doped phosphate glasses substrates with graphene single layer (1L) and bilayer (2L) by Raman spectroscopy. This interaction is studied in terms of shifting of the G, 2D and 2D' bands of graphene, which is higher in 1L than in 2L graphene on the 20% Yb3+ substrate, in respect to the 5.0 wt.% substrate. Furthermore, changes in the full width at half maximum of the G, 2D and 2D' bands, together with the I-2D/I-G ratio, for doped and undoped substrates, reveal this interaction. Additionally, when a single layer graphene is found on the surface of both substrates, some Raman peaks on the less doped sample are absent, whereas they are present on the more doped sample, indicating that the presence of Yb(3+ )ions increases the interaction between the substrate and the single layer graphene. The reported results give insights about graphene interaction with doped rare earth substrates.