Presentation Details
Accurate Power Measurement of Silicon Solar Cells for Space Applications

Abigail R.Meyer, Zachary W.Zawisza, Alexandra Pettengill, Crystal Qu, Rivka Stasavage, Don Walker, Yao Y.Lao.

The Aerospace Corporation, El Segundo, CA, USA

Abstract


The rapid expansion of space missions, enabled by reduced launch costs and accelerated development cycles, is driving a transition from traditional III-V multijunction solar cells — limited by high cost and low manufacturing throughput — towards scalable silicon photovoltaic technologies. As silicon solar cells are increasingly considered for space power systems, accurate and traceable performance measurements under space-relevant conditions are essential. Sample preparation practices, including solar cell cutting for radiation and qualification testing, can significantly impact measured remaining power due to size-dependent and edge-related losses. If not properly accounted for, these effects can lead to erroneous conclusions regarding degradation behavior, radiation tolerance, and end-of life power predictions for space photovoltaic systems.

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