Solar cells > GaAs Triple Junction Solar Cell Modules
Key highlights
- GaAs triple-junction cells, 30–32% BOL efficiency.
- Coverglass with AR coating.
- Radiation degradation analysis and EOL power prediction for the customer's orbit, mission duration and 1 MeV equivalent electron fluence.
- Integrated bypass diodes per cell.
- Every individual cell tested and characterised in-house.
- Common production line with our silicon modules, giving consistent trade assumptions across both technologies.
- Delivered with as-built BOL IV curve data, test results and full documentation pack.
Applications
- All types of constellations.
- GEO, MEO and long-duration LEO missions
- Missions where deployed area or mass is capped.
Customization
Panel layout built to the customer's substrate geometry.
Series/parallel string layout designed to the customer's EPS bus voltage and regulation architecture.
Module sized to the customer's power budget, envelope, thermal case and mission life.
Radiation degradation analysis and EOL power prediction run for the customer's specific orbit and mission duration.
Harness and connector interface to customer specification.
Qualification to ECSS or to the customer's own requirement standards.
Manufacturing
Modules are manufactured in our in-house production facility in Berlin.
Export control
The Triple junction cell modules are ITAR/EAR free.
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Last updated: 2026-08-18
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