Mechanically transferred large-area Ga${}_2$O${}_3$ passivates graphene and suppresses interfacial phonon scattering

Matthew Gebert, Semonti Bhattacharyya, Christopher C Bounds +3

We demonstrate a large-area passivation layer for graphene by mechanical transfer of ultrathin amorphous Ga${}_2$O${}_3$ synthesized on liquid Ga metal. A comparison of temperature-dep…