Journal
AIP ADVANCES
Volume 4, Issue 8, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4894449
Keywords
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Funding
- European Union
- EPSRC [EP/K017160/1, EP/J018651/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J018651/1, EP/K017160/1] Funding Source: researchfish
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We have investigated the spatial and spectral characteristics of mid-infrared thermal emission from large area Chemical Vapor Deposition (CVD) graphene, transferred onto SiO2/Si, and show that the emission is broadly that of a grey-body emitter, with emissivity values of approximately 2% and 6% for mono-and multilayer graphene. For the currents used, which could be sustained for over one hundred hours, the emission peaked at a wavelength of around 4 mu m and covered the characteristic absorption of many important gases. A measurable modulation of thermal emission was obtained even when the drive current was modulated at frequencies up to 100 kHz. (C) 2014 Author(s).
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