NASA NTRS · 20260004863
Technology Assessment and Modelling of Three Terminal Tandem Solar Cells for In-Space Utilization
Abstract
NASA seeks a sustained human presence on the lunar surface. High-efficiency and resilient energy systems are critical to supporting habitats, scientific outposts, and lunar surface operations. Photovoltaics have long been the backbone of space power systems, transitioning from silicon solar cells to multi-junction III-V solar cells, which now dominate state-of-the-art (SOA) technology. Multi-junction cells achieve high efficiency by layering semiconductors, each absorbing a specific portion of the solar spectrum. However, efficiency gains are increasingly constrained by device physics and manufacturing complexity. Additionally, higher-order junctions pose challenges for accurate modelling and performance characterization due to difficulties in replicating the AM0 spectrum.
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Alexis J Arroyo, Jeremiah Sims. Technology Assessment and Modelling of Three Terminal Tandem Solar Cells for In-Space Utilization. https://ntrs.nasa.gov/citations/20260004863
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