Abstract 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 I2D/IG 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 Yb3+ 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.

中文翻译：

---

Yb3+ 掺杂玻璃基板与石墨烯层之间的拉曼光谱相互作用

摘要 我们通过拉曼光谱报告了 5.0 wt.% 和 20 wt.% Yb3+ 掺杂磷酸盐玻璃基板与石墨烯单层 (1L) 和双层 (2L) 之间的相互作用。这种相互作用是根据石墨烯的 G、2D 和 2D' 带的移动来研究的，相对于 5.0 wt.% 的基板，在 20% Yb3+ 基板上的 1L 比在 2L 石墨烯中更高。此外，对于掺杂和未掺杂衬底，G、2D 和 2D' 带的半高全宽的变化以及 I2D/IG 比率的变化揭示了这种相互作用。此外，当在两个基板的表面发现单层石墨烯时，较少掺杂样品上的一些拉曼峰不存在，而它们存在于较多掺杂样品上，表明 Yb3+ 离子的存在增加了基板之间的相互作用和单层石墨烯。