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

Abstract

ABSTRACT 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 Ga 0.35 In 0.65 P/Ga 0.83 In 0.17 As dual‐junction cell, a metamorphic Ga 0.35 In 0.65 P/Ga 0.83 In 0.17 As/Ge triple‐junction cell and a lattice‐matched Ga 0.50 In 0.50 P/Ga 0.99 In 0.01 As/Ge triple‐junction cell determined under well‐controlled laboratory conditions are reported. Copyright © 2012 John Wiley & Sons, Ltd.