17 February 2017 A design of a PhC-enhanced LED for electroluminescence cooling
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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.
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Zheng Li, Zheng Li, Jin Xue, Jin Xue, Rajeev Ram, Rajeev Ram, } "A design of a PhC-enhanced LED for electroluminescence cooling", Proc. SPIE 10121, Optical and Electronic Cooling of Solids II, 1012108 (17 February 2017); doi: 10.1117/12.2253403; https://doi.org/10.1117/12.2253403
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