Title :
Surface conductivity evaluation of CVD graphene up to 2.5 THz
Author :
Katsounaros, Anestis ; Yang Hao
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Queen Mary Univ. of London, London, UK
Abstract :
Transmission terahertz time-domain spectroscopy (THz-TDS) measurements of chemical vapor deposition (CVD) graphene on quartz are presented. A mono-layer of graphene has been prepared and measured using THz-TDS. Experimental results were obtained from 100 GHz to 2.5 THz, and the quartz substrate has been initially characterized by extracting the complex permittivity. Graphene has been treated as boundary condition with finite surface conductivity, which has also been calculated. Drude model provide a good fit to the measured surface conductivity, within the frequency range.
Keywords :
chemical vapour deposition; graphene; monolayers; permittivity; surface conductivity; terahertz wave spectra; time-domain analysis; C-SiO2; CVD; Drude model; SiO2; THz-TDS measurements; chemical vapor deposition; complex permittivity; frequency 100 GHz to 2.5 THz; graphene monolayer; quartz substrate; surface conductivity; transmission terahertz time-domain spectroscopy; Conductivity; Graphene; Spectroscopy; Substrates; Surface treatment; Time-domain analysis; complex permittivity; drude model; graphene; surface conductivity; terahertz time-domain spectroscopy;
Conference_Titel :
Microwave Conference (EuMC), 2013 European
Conference_Location :
Nuremberg
