[19p-P01-1~23] 17 Nanocarbon Technology(Poster)

[19p-P01-5] Controlling the thermal transport of multilayer graphene by electrostatically induced strain

〇Kaito Nakagawa¹, Kazuo Satoh², Shuichi Murakami², Kuniharu Takei¹, Seiji Akita¹, Takayuki Arie¹ (1.Osaka Pref. Univ., 2.ORIST)

Keywords:graphene, thermal transport, strain

Strain applied to the material modifies its electrical and thermal properties. In this study, the thermal conductivity of mechanically exfoliated multilayer graphene was measured by Raman spectroscopy while applying strain induced by electrostatic attraction between graphene and the substrate. We found that the thermal conductivity decreased by 70% when the strain of approximately 0.1% was applied. This result implies that the phonon conduction, which carries heat in graphene, is strongly suppressed by the strain distributed non-uniformly.