Summary

4-Junction solar cell for space applications.

  • 4-junction n-on-p solar cell on germanium substrate
  • Superior radiation hardness and temperature performance compared to other Germanium based solar cells
  • 30.0% Minimum Average Efficiency
  • For a typical GEO Telecom Mission, Z4J produces ~7% greater EOL power than ZTJ
  • Qualification and characterization to AIAA S-111 2014 Standards in progress

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Last updated: 2019-08-02

Z4J Space Solar Cell

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