Atomically thin alkane passivation layer for flexible and transparent graphene electronics

Abstract

We report an atomically-thin passivation layer composed of a self-assembled alkane monolayer, that protects graphene from outside dopants and external contamination while retaining its transparency, flexibility and superior electron transfer ability. These advantages allowed successful fabrication of passivated graphene field-effect transistors (G-FETs) on a plastic substrate with ion-gel gate dielectrics for transparent and flexible electronics. This highly transparent, flexible, and ultra-thin organic passivation layer has many possible applications in electronics that use graphene.