Ultra triple junction GaInP/sub 2//GaAs/Ge solar cells: cell design and qualification status
J.E. Granata, C. Fetzer, J.H. Ermer
May 18, 2003
Citations
11
Citations
Journal
3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of
Semantic Scholar
Key Takeaway Key Takeaway: Ultra Triple Junction (UTJ) solar cells have a 28.0% efficiency at maximum power and 22.6% after 15 years in GEO orbit, with a comprehensive space-qualification program improving on-orbit performance predictions.
Abstract
Spectrolab introduces its latest multi-junction solar cell with efficiency at maximum power at beginning of life of 28.0% (AM0, 28/spl deg/C, 135.3 mW/cm/sup 2/) and 22.6% at 60/spl deg/C after 15 years in GEO orbit. The space-qualification program employed for the Ultra Triple Junction (UTJ) solar cell is the most comprehensive to date, leading the way to improving on-orbit performance predictions. The UTJ cell is currently in qualification and is expected to be in production 2Q 2003.
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