Space Solar
Cells/CICs

Solar cells optimized for all
space missions and are fully space qualified
4MW of power delivered

Z4J+

31.3% Minimum Average Efficiency
  • 4-junction n-on-p solar cell on germanium substrate
  • Radiation hardened design with P/Po = 0.90 @ 1-MeV electron, 1E15 e/cm² fluence
  • For a typical GEO Telecom Mission, Z4J+ produces 12% greater EOL power than ZTJ (1-MeV electron, 1E15e/cm² @ 55°C)
  • Fully qualified to the AIAA-S111-2014 Qualification and Characterization Standard
Z4J+ Datasheet

Z4J

30.0% Minimum Average Efficiency
  • 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
  • Fully qualified to the AIAA-S111-2014 Qualification and Characterization Standard.
Z4J Datasheet

ZTJ family of
triple-junction solar cells

We offer a suite of vertically-integrated space solar panel products, each specifically
designed for missions to LEO, MEO, GEO or interplanetary applications.

ZTJ-Ω

Triple-junction
solar cells
  • 30.2% Minimum Average BOL Efficiency
  • Optimized for Low Earth Orbit (LEO) Missions
Datasheet

ZTJ

Standard triple-junction
solar cells
  • 29.5% Minimum Average BOL Efficiency
  • Excellent Performance under LILT (Low-Intensity Low-Temperature) Conditions
Datasheet

ZTJ+

Triple junction
solar cells
  • Comparable BOL Efficiency to ZTJ
  • Optimized for High-Radiation Space Environments
Datasheet

IMM-a

Inverted metamorphic
space solar cell
  • 32.0% Minimum Average BOL Efficiency
  • Highest Performance Radiation-Hard Space Solar Cell in Production
  • Superior Performance under LILT (Low-Intensity Low-Temperature) Conditions
  • Fully qualified to the AIAA-S111-2014 Qualification and Characterization Standard
Datasheet
imm a