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Chang CC, Kort-Kamp WJM, Nogan J, Luk TS, Azad AK, Taylor AJ, Dalvit DAR, Sykora M, Chen HT. High-Temperature Refractory Metasurfaces for Solar Thermophotovoltaic Energy Harvesting. Nano Lett 2018; 18:7665-7673. [PMID: 30395478 DOI: 10.1021/acs.nanolett.8b03322] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Solar energy promises a viable solution to meet the ever-increasing power demand by providing a clean, renewable energy alternative to fossil fuels. For solar thermophotovoltaics (STPV), high-temperature absorbers and emitters with strong spectral selectivity are imperative to efficiently couple solar radiation into photovoltaic cells. Here, we demonstrate refractory metasurfaces for STPV with tailored absorptance and emittance characterized by in situ high-temperature measurements, featuring thermal stability up to at least 1200 °C. Our tungsten-based metasurface absorbers have close-to-unity absorption from visible to near-infrared and strongly suppressed emission at longer wavelengths, while our metasurface emitters provide wavelength-selective emission spectrally matched to the band-edge of InGaAsSb photovoltaic cells. The projected overall STPV efficiency is as high as 18% when a fully integrated absorber/emitter metasurface structure is employed, which is comparable to the efficiencies of the best currently available commercial single-junction PV cells and can be further improved to potentially exceed those in mainstream photovoltaic technologies. Our work opens a path forward for high-performance STPV systems based on refractory metasurface structures.
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Affiliation(s)
- Chun-Chieh Chang
- Center for Integrated Nanotechnologies , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| | - Wilton J M Kort-Kamp
- Center for Nonlinear Studies , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
- Theoretical Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| | - John Nogan
- Center for Integrated Nanotechnologies , Sandia National Laboratories , Albuquerque , New Mexico 87123 , United States
| | - Ting S Luk
- Center for Integrated Nanotechnologies , Sandia National Laboratories , Albuquerque , New Mexico 87123 , United States
| | - Abul K Azad
- Center for Integrated Nanotechnologies , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| | - Antoinette J Taylor
- Chemistry, Life, and Earth Sciences Directorate , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| | - Diego A R Dalvit
- Theoretical Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| | - Milan Sykora
- Chemistry Division , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
| | - Hou-Tong Chen
- Center for Integrated Nanotechnologies , Los Alamos National Laboratory , Los Alamos , New Mexico 87545 , United States
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