Cross-plane Thermoelectric and Thermionic Transport across Au/h-BN/Graphene Heterostructures.

ABSTRACT: The thermoelectric voltage generated at an atomically abrupt interface has not been studied exclusively because of the lack of established measurement tools and techniques. Atomically thin 2D materials provide an excellent platform for studying the thermoelectric transport at these interfaces. Here, we report a novel technique and device structure to probe the thermoelectric transport across Au/h-BN/graphene heterostructures. An indium tin oxide (ITO) transparent electrical heater is patterned on top of this heterostructure, enabling Raman spectroscopy and thermometry to be obtained from the graphene top electrode in situ under device operating conditions. Here, an AC voltage V(ω) is applied to the ITO heater and the thermoelectric voltage across the Au/h-BN/graphene heterostructure is mea

SUBMITTER: Poudel N 

PROVIDER: S-EPMC5658445 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature