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A combined electroluminescence and photoluminescence setup for a fast, nondestructive, and high-resolution characterization of large-area lattice matched GaInP2 /Ga(In)As/Ge triple-junction space solar cells was developed. In contrast with electroluminescence, where coupling effects between the subcells appear, all subcells can be analyzed independently in photoluminescence imaging, using three monochromatic...
A method for spatially resolved series resistance measurements of Ga0.5In0.5P/Ga(In)As/Ge triple-junction solar cells based on electro- and photoluminescence imaging is presented. The results gained from luminescence images of all three subcells clearly indicate the main contributions to the series resistance like interrupted gridfingers, the frontside metallization itself and the top cell emitter...
A combined electroluminescence and photoluminescence setup for a fast, nondestructive, and high-resolution characterization of large-area lattice matched GaInP /Ga(In)As/Ge triple-junction space solar cells was developed. In contrast with electroluminescence, where coupling effects between the subcells appear, all subcells can be analyzed independently in photoluminescence imaging, using three...
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