Terahertz spectroscopy of a multilayers flake of graphene

19th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures

Clericó, V.^1 ; Notario, J A Delgado^2 ; Campos, N.^3 ; Gómez, D.^3 ; Diez, E.^1 ; Velazquez, J.E.^2 ; Meziani, Y.M.^2

Dept. Física Fundamental, Universidad de Salamanca, Salamanca

37008, Spain^1

Dept. Física Aplicada, Universidad de Salamanca, Salamanca

37008, Spain^2

Energy Area. Fundación ITMA., C/Calafates 11., Avilés

33417, Spain^3

关键词: CVD method;    Exfoliated graphene;    Non-destructive technique;    Quality information;    Terahertz time domain spectroscopy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/647/1/012040/pdf
DOI  :  10.1088/1742-6596/647/1/012040

来源: IOP

【 摘 要 】

Terahertz Time Domain Spectroscopy (THz-TDS) technique has been used to characterize two graphene based samples produced by exfoliation and CVD methods. In both cases, we find two interesting bands, in both CVD and exfoliated graphene, in the 0.2-2 THz range. Quality information can be extracted with this non-destructive technique. The obtained values of the conductivity are in the same range of those obtained in the literature.