AlGaInP/GaAs Tandem Solar Cells for Power Conversion at 400 degrees C and 1000X Concentration
We demonstrate dual junction (Al)GaInP/GaAs solar cells that are designed to operate at 400 degrees C and 1000X concentration. The cells have stable front metallization and anti-reflection coatings at 400 degrees C. The choice of bandgaps was first estimated using ideal solar cell characteristics and then refined based on empirical data. We show power conversion efficiency of ~15 +/- 1% for AR-coated cells at 400 degrees C and high concentration, with pathways to improved performance.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- U.S. Department of Energy, Advanced Research Projects Agency-Energy (ARPA-E)
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1544979
- Report Number(s):
- NREL/CP-5900-68718
- Resource Relation:
- Conference: Presented at the 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 25-30 June 2017, Washington, D.C.
- Country of Publication:
- United States
- Language:
- English
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