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Proceedings Paper

A design of a PhC-enhanced LED for electroluminescence cooling
Author(s): Zheng Li; Jin Xue; Rajeev Ram
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Paper Abstract

It is known that the wall-plug efficiency (WPE) of a light-emitting diode (LED) can exceed unity and that electroluminescence cooling (ELC) happens in this scenario. However, it is difficult to observe the associated temperature drop due to the relatively small cooling power and the overwhelming heat flux from the ambient. In this work, we design a photonic crystal (PhC) enhanced LED which has smaller surface area as well as thermal mass compared with an encapsulated LED. We also present thermal models to evaluate the temperature drop of the LED in air and vacuum.

Paper Details

Date Published: 17 February 2017
PDF: 10 pages
Proc. SPIE 10121, Optical and Electronic Cooling of Solids II, 1012108 (17 February 2017); doi: 10.1117/12.2253403
Show Author Affiliations
Zheng Li, Massachusetts Institute of Technology (United States)
Jin Xue, Massachusetts Institute of Technology (United States)
Rajeev Ram, Massachusetts Institute of Technology (United States)


Published in SPIE Proceedings Vol. 10121:
Optical and Electronic Cooling of Solids II
Richard I. Epstein; Denis V. Seletskiy; Mansoor Sheik-Bahae, Editor(s)

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