Analysis of temperature coefficients for III–V multi-junction concentrator cells



The temperature dependence of the I–V parameters of different III–V multi-junction concentrator cells at several concentration levels was investigated. Moreover, the influence of spectral changes on the temperature coefficients of multi-junction solar cells was examined. Complete sets of temperature coefficients of a metamorphic Ga0.35In0.65P/Ga0.83In0.17As dual-junction cell, a metamorphic Ga0.35In0.65P/Ga0.83In0.17As/Ge triple-junction cell and a lattice-matched Ga0.50In0.50P/Ga0.99In0.01As/Ge triple-junction cell determined under well-controlled laboratory conditions are reported. Copyright © 2012 John Wiley & Sons, Ltd.