Flexible GaInP/Ga(In)As/Ge triple-junction space solar cells with a simple fabrication process based on Ge substrate thinning demonstrate power-to-mass ratios of 1.3 kW/kg - Algora, Carlos; Reboreda, Daniel G; Palacios, Pablo F; Pulido, Alvaro; Cifuentes, Luis; Cano, Aitana; Gabas, Mercedes; de Olcoz, Ainhoa Martinez; Jungst, Gerald (Solar Energy Materials And Solar Cells, 2025)