Thermodynamics of Photovoltaics
A solar cell is a thermodynamic engine working between two heat reservoirs, one at high temperature T 1 (= the temperature of the Sun = 5762 K) and one at low temperature T 2 (= the temperature of the Earth = 288 K). Its electric current consists of two parts: the light current, strongly dependent on T 1, and the dark current, strongly dependent both on T 2 and on material constants and technology parameters.
KeywordsEntropy Recombination GaAs Auger GaSb
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