Transmissive concentrator multijunction solar cells with over 47% in-band power conversion efficiency
- Tulane Univ., New Orleans, LA (United States)
- Boeing-Spectrolab, Inc., Sylmar, CA (United States)
Transmissive concentrator multijunction (TCMJ) solar cells with over 47% in-band power conversion efficiency (PCE) have been designed and realized. These TCMJ solar cells have been characterized under 1 sun and concentrated 500 sun solar spectra, showing that the PCE for in-band light (photon energies above the cell’s lowest bandgap) can reach up to 47.6% (29.5% for the full solar spectrum). Temperature coefficients of electrical parameters (Voc, Jsc, FF) have been derived from measurements within the temperature range of 20°C to 130°C, showing linear variations versus temperature change. Here, optical measurements demonstrate that the cells show 76.5% solar-weighted optical transmission for the out-of-band light (photon energy below the cell’s lowest bandgap). This TCMJ solar cell exhibits promising spectrum splitting capability, which has potential for use in hybrid photovoltaic-solar thermal applications.
- Research Organization:
- Tulane Univ., New Orleans, LA (United States)
- Sponsoring Organization:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E)
- Grant/Contract Number:
- AR0000473
- OSTI ID:
- 1461972
- Alternate ID(s):
- OSTI ID: 1421244
- Journal Information:
- Applied Physics Letters, Vol. 109, Issue 19; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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