TY - JOUR
T1 - Heat-flux control and solid-state cooling by regulating chemical potential of photons in near-field electromagnetic heat transfer
AU - Chen, Kaifeng
AU - Santhanam, Parthiban
AU - Sandhu, Sunil
AU - Zhu, Linxiao
AU - Fan, Shanhui
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/4/13
Y1 - 2015/4/13
N2 - We consider near-field heat transfer with nonzero chemical potential for photons, as can occur between two semiconductor bodies, held at different temperatures with at least one of the bodies under external bias. We show that the dependence of radiative heat flux on chemical potential enables electronic control of both the direction and magnitude of near-field heat transfer between the two bodies. Moreover such a configuration can operate as a solid-state cooling device whose efficiency can approach the Carnot limit in the ideal case. Significant cooling can also be achieved in the presence of inherent nonidealities including Auger recombination and parasitic phonon-polariton heat transfer.
AB - We consider near-field heat transfer with nonzero chemical potential for photons, as can occur between two semiconductor bodies, held at different temperatures with at least one of the bodies under external bias. We show that the dependence of radiative heat flux on chemical potential enables electronic control of both the direction and magnitude of near-field heat transfer between the two bodies. Moreover such a configuration can operate as a solid-state cooling device whose efficiency can approach the Carnot limit in the ideal case. Significant cooling can also be achieved in the presence of inherent nonidealities including Auger recombination and parasitic phonon-polariton heat transfer.
UR - http://www.scopus.com/inward/record.url?scp=84928810280&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84928810280&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.91.134301
DO - 10.1103/PhysRevB.91.134301
M3 - Article
AN - SCOPUS:84928810280
SN - 1098-0121
VL - 91
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 13
M1 - 134301
ER -