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Active Radiative Thermal Switching with Graphene Plasmon Resonators

Ilic, Ognjen and Thomas, Nathan H. and Christensen, Thomas and Sherrott, Michelle C. and Soljačić, Marin and Minnich, Austin J. and Miller, Owen D. and Atwater, Harry A. (2018) Active Radiative Thermal Switching with Graphene Plasmon Resonators. ACS Nano, 12 (3). pp. 2474-2481. ISSN 1936-0851. doi:10.1021/acsnano.7b08231.

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We theoretically demonstrate a near-field radiative thermal switch based on thermally excited surface plasmons in graphene resonators. The high tunability of graphene enables substantial modulation of near-field radiative heat transfer, which, when combined with the use of resonant structures, overcomes the intrinsically broadband nature of thermal radiation. In canonical geometries, we use nonlinear optimization to show that stacked graphene sheets offer improved heat conductance contrast between “ON” and “OFF” switching states and that a >10× higher modulation is achieved between isolated graphene resonators than for parallel graphene sheets. In all cases, we find that carrier mobility is a crucial parameter for the performance of a radiative thermal switch. Furthermore, we derive shape-agnostic analytical approximations for the resonant heat transfer that provide general scaling laws and allow for direct comparison between different resonator geometries dominated by a single mode. The presented scheme is relevant for active thermal management and energy harvesting as well as probing excited-state dynamics at the nanoscale.

Item Type:Article
Related URLs:
URLURL TypeDescription Information
Thomas, Nathan H.0000-0003-4648-5325
Sherrott, Michelle C.0000-0002-7503-9714
Minnich, Austin J.0000-0002-9671-9540
Miller, Owen D.0000-0003-2745-2392
Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2018 American Chemical Society. Received: November 20, 2017; Accepted: March 12, 2018; Published: March 12, 2018. O.I., N.H.T., M.C.S, A.J.M., and H.A.A. were supported as part of the DOE “Light-Material Interactions in Energy Conversion” Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under award no. DE-SC0001293. O.I., M.C.S., and H.A.A. acknowledge support from the Northrop Grumman Corporation through NG Next. M.C.S. acknowledges fellowship support from the Resnick Sustainability Institute. O.D.M. was supported by the Air Force Office of Scientific Research under award no. FA9550-17-1-0093. T.C. was supported by the Danish Council for Independent Research (grant DFFC6108-00667). M.S. was supported as part of the Army Research Office through the Institute for Soldier Nanotechnologies under contract no. W911NF-13-D-0001 (photon management for developing nuclear-TPV and fuel-TPV mm-scale-systems). M.S. was also supported as part of the S3TEC, an Energy Frontier Research Center funded by the US Department of Energy under grant no. DE-SC0001299 (for fundamental photon transport related to solar TPVs and solar-TEs). The authors declare no competing financial interest.
Group:Resnick Sustainability Institute
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0001293
Northrop Grumman CorporationUNSPECIFIED
Resnick Sustainability InstituteUNSPECIFIED
Air Force Office of Scientific Research (AFOSR)FA9550-17-1-0093
Danish Council for Independent ResearchDFFC6108-00667
Army Research Office (ARO)W911NF-13-D-0001
Department of Energy (DOE)DE-SC0001299
Subject Keywords:graphene, thermal radiation, near-field radiative heat transfer, surface plasmon
Issue or Number:3
Record Number:CaltechAUTHORS:20180314-101708544
Persistent URL:
Official Citation:Active Radiative Thermal Switching with Graphene Plasmon Resonators. Ognjen Ilic, Nathan H. Thomas, Thomas Christensen, Michelle C. Sherrott, Marin Soljačić, Austin J. Minnich, Owen D. Miller, and Harry A. Atwater. ACS Nano 2018 12 (3), 2474-2481 DOI: 10.1021/acsnano.7b08231
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:85304
Deposited By: Tony Diaz
Deposited On:15 Mar 2018 03:38
Last Modified:15 Nov 2021 20:27

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