Abstract

Electroluminescence cooling of a heated infrared-emitting diode has been claimed [P. Santhanam, D. J. Gray, Jr. and R. J. Ram, Thermoelectrically pumped light-emitting diodes operating above unity efficiency, Phys. Rev. Lett. 108 (2012) 097403]. After analyzing the operating characteristics of this diode, it is evident that electroluminescence cooling was not demonstrated.

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