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Proceedings Paper

Thermophotonic heat pump: towards the first demonstration of electroluminescent cooling?
Author(s): Jani Oksanen; Jukka Tulkki
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Paper Abstract

We have recently proposed a solid state heat pump based on photon mediated heat transfer between two large-area light emitting diodes (LEDs) coupled by the electromagnetic field and enclosed in a semiconductor structure with a nearly homogeneous refractive index. We have shown that ideally the thermophotonic heat pump (THP) allows heat transfer at Carnot efficiency and studied the factors that in practice limit the efficiency. In this paper we link the previously parametrized loss mechanisms to the observed nonradiative loss mechanisms in LEDs and study the requirements of observing electroluminescent cooling by using the THP structure. Our results show that a very simple structure that optically couples two LEDs and fabricated using current standard fabrication methods should enable electroluminescent cooling.

Paper Details

Date Published: 8 February 2010
PDF: 9 pages
Proc. SPIE 7614, Laser Refrigeration of Solids III, 76140F (8 February 2010); doi: 10.1117/12.839849
Show Author Affiliations
Jani Oksanen, Helsinki Univ. of Technology (Finland)
Jukka Tulkki, Helsinki Univ. of Technology (Finland)

Published in SPIE Proceedings Vol. 7614:
Laser Refrigeration of Solids III
Richard I. Epstein; Mansoor Sheik-Bahae, Editor(s)

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