Thermal emission from large area chemical vapor deposited graphene devices
Luxmoore, Isaac John; Adlem, C.; Poole, Timothy; et al.Lawton, L.M.; Mahlmeister, N.H.; Nash, Geoffrey R.
Date: 2013
Journal
Applied Physics Letters
Publisher
American Institute of Physics (AIP)
Publisher DOI
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Abstract
The spatial variation of thermal emission from large area graphene grown by chemical vapor deposition, transferred onto SiO2/Si substrates and fabricated into field effect transistor structures, has been investigated using infra-red microscopy. A peak in thermal emission occurs, the position of which can be altered by reversal of the ...
The spatial variation of thermal emission from large area graphene grown by chemical vapor deposition, transferred onto SiO2/Si substrates and fabricated into field effect transistor structures, has been investigated using infra-red microscopy. A peak in thermal emission occurs, the position of which can be altered by reversal of the current direction. The experimental results are compared with a one dimensional finite element model, which accounts for Joule heating and electrostatic effects, and it is found that the thermal emission is governed by the charge distribution in the graphene and maximum Joule heating occurs at the point of minimum charge density.
Engineering
Faculty of Environment, Science and Economy
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