[16a-PA2-1~60] 17 Nanocarbon Technology（Poster）

[16a-PA2-49] Ionic-Liquid-Species Dependence of Carrier Mobility in Ionic-Liquid Top-Gated Graphene Field Effect Transistors

〇Shinji Koh¹, Shinpei Satomi¹ (1.Aoyama Gakuin Univ.)

Keywords:graphene,ionic liquid,FET

We investigated on the ionic-liquid-species dependence of carrier mobility in ionic-liquid top-gated graphene FETs. It was found that the carrier mobility systematically decreases with increasing capacitance of the ionic liquid. The correlation can be attributed to the effect of the polaron formed at the ionic liquid/graphene interface.