This title appears in the Scientific Report :
2011
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.83.241407 in citations.
Please use the identifier: http://hdl.handle.net/2128/10886 in citations.
Near-field radiative heat transfer between closely spaced graphene and amorphous SiO2
Near-field radiative heat transfer between closely spaced graphene and amorphous SiO2
We study the near-field radiative energy transfer between graphene and an amorphous SiO2 substrate. In comparison with the existing theories of near-field radiative heat transfer our theory takes into account that the free carriers in graphene are moving relative to the substrate with a drift veloci...
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Personal Name(s): | Volokitin, A. I. |
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Persson, B.N.J. | |
Contributing Institute: |
Quanten-Theorie der Materialien; IAS-1 Quanten-Theorie der Materialien; PGI-1 |
Published in: | Physical Review B Physical review / B, 83 83 (2011 2011) 24 24, S. 241407 241407 |
Imprint: |
College Park, Md.
APS
2011
|
Physical Description: |
241407 |
DOI: |
10.1103/PhysRevB.83.241407 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Physical Review B
83 |
Subject (ZB): | |
Link: |
Get full text OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/10886 in citations.
We study the near-field radiative energy transfer between graphene and an amorphous SiO2 substrate. In comparison with the existing theories of near-field radiative heat transfer our theory takes into account that the free carriers in graphene are moving relative to the substrate with a drift velocity v. In this case the heat flux is determined by both thermal and quantum fluctuations. We find that quantum fluctuations give an important contribution to the radiative energy transfer for low temperatures and high electric field (large drift velocities). For nonsuspended graphene the near-field radiative energy transfer gives a significant contribution to the heat transfer in addition to the contribution from phononic coupling. For suspended graphene (large separation) the corresponding radiative energy transfer coefficient at a nanoscale gap is similar to 3 orders of magnitude larger than radiative heat transfer coefficient of the blackbody radiation limit. |