[10p-PA8-1~39] 17 Nanocarbon Technology (Poster)

[10p-PA8-22] Measurement of sheet resistance for graphene on sapphire without any electrodes.

〇Takashi Fujii^1,3, Mouri Shinichirou¹, Araki Tsutomu¹, Ueda Yuuki², Naritsuka Shigeya², Iwamoto Toshiyuki³ (1.Ritsumeikan Univ., 2.Meijo Univ., 3.PNP)

Keywords:Graphene, THz-TDS, Drude model

We proposed measuring method of electrical properties without destruction and contact for some semiconductor materials, such as Si, GaN and so, using THz time-domain spectroscopy (THz-TDS). We applied this technique for the graphene, 2-dimensional material, and tried the measurement of electrical properties without any electrode. First, we measured the complex permittivity of graphene by THz-TDS. Next, we determined the scattering time and Drude weight of graphene applying Drude model. Final, the resistivity of graphene was calculated by the results of the scattering time and Drude weight.