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Title: High-efficiency thermophotovoltaic energy conversion enabled by a metamaterial selective emitter

Abstract

Thermophotovoltaics (TPV) is the process by which photons radiated from a thermal emitter are converted into electrical power via a photovoltaic cell. Selective thermal emitters that can survive at temperatures at or above ~1000°C have the potential to greatly improve the efficiency of TPV energy conversion by restricting the emission of photons with energies below the photovoltaic (PV) cell bandgap energy. In this work, we demonstrated TPV energy conversion using a high-temperature selective emitter, dielectric filter, and 0.6 eV In 0.68Ga 0.32As photovoltaic cell. We fabricated a passivated platinum and alumina frequency-selective surface by conventional stepper lithography. To our knowledge, this is the first demonstration of TPV energy conversion using a metamaterial emitter. The emitter was heated to >1000°C, and converted electrical power was measured. After accounting for geometry, we demonstrated a thermal-to-electrical power conversion efficiency of 24.1±0.9% at 1055°C. We separately modeled our system consisting of a selective emitter, dielectric filter, and PV cell and found agreement with our measured efficiency and power to within 1%. Our results indicate that high-efficiency TPV generators are possible and are candidates for remote power generation, combined heat and power, and heat-scavenging applications.

Authors:
 [1];  [2];  [2];  [2];  [2];  [3]; ORCiD logo [2];  [2];  [2];  [1]
  1. Physical Sciences Inc., Andover, MA (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1420681
Alternate Identifier(s):
OSTI ID: 1477426
Report Number(s):
SAND-2018-10586J
Journal ID: ISSN 2334-2536; 668166
Grant/Contract Number:  
AC04-94AL85000; NA0003525
Resource Type:
Journal Article: Published Article
Journal Name:
Optica
Additional Journal Information:
Journal Volume: 5; Journal Issue: 2; Journal ID: ISSN 2334-2536
Publisher:
Optical Society of America
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION

Citation Formats

Woolf, David N., Kadlec, Emil A., Bethke, Don, Grine, Albert D., Nogan, John J., Cederberg, Jeffrey G., Bruce Burckel, D., Luk, Ting Shan, Shaner, Eric A., and Hensley, Joel M.. High-efficiency thermophotovoltaic energy conversion enabled by a metamaterial selective emitter. United States: N. p., 2018. Web. doi:10.1364/OPTICA.5.000213.
Woolf, David N., Kadlec, Emil A., Bethke, Don, Grine, Albert D., Nogan, John J., Cederberg, Jeffrey G., Bruce Burckel, D., Luk, Ting Shan, Shaner, Eric A., & Hensley, Joel M.. High-efficiency thermophotovoltaic energy conversion enabled by a metamaterial selective emitter. United States. doi:10.1364/OPTICA.5.000213.
Woolf, David N., Kadlec, Emil A., Bethke, Don, Grine, Albert D., Nogan, John J., Cederberg, Jeffrey G., Bruce Burckel, D., Luk, Ting Shan, Shaner, Eric A., and Hensley, Joel M.. Fri . "High-efficiency thermophotovoltaic energy conversion enabled by a metamaterial selective emitter". United States. doi:10.1364/OPTICA.5.000213.
@article{osti_1420681,
title = {High-efficiency thermophotovoltaic energy conversion enabled by a metamaterial selective emitter},
author = {Woolf, David N. and Kadlec, Emil A. and Bethke, Don and Grine, Albert D. and Nogan, John J. and Cederberg, Jeffrey G. and Bruce Burckel, D. and Luk, Ting Shan and Shaner, Eric A. and Hensley, Joel M.},
abstractNote = {Thermophotovoltaics (TPV) is the process by which photons radiated from a thermal emitter are converted into electrical power via a photovoltaic cell. Selective thermal emitters that can survive at temperatures at or above ~1000°C have the potential to greatly improve the efficiency of TPV energy conversion by restricting the emission of photons with energies below the photovoltaic (PV) cell bandgap energy. In this work, we demonstrated TPV energy conversion using a high-temperature selective emitter, dielectric filter, and 0.6 eV In0.68Ga0.32As photovoltaic cell. We fabricated a passivated platinum and alumina frequency-selective surface by conventional stepper lithography. To our knowledge, this is the first demonstration of TPV energy conversion using a metamaterial emitter. The emitter was heated to >1000°C, and converted electrical power was measured. After accounting for geometry, we demonstrated a thermal-to-electrical power conversion efficiency of 24.1±0.9% at 1055°C. We separately modeled our system consisting of a selective emitter, dielectric filter, and PV cell and found agreement with our measured efficiency and power to within 1%. Our results indicate that high-efficiency TPV generators are possible and are candidates for remote power generation, combined heat and power, and heat-scavenging applications.},
doi = {10.1364/OPTICA.5.000213},
journal = {Optica},
number = 2,
volume = 5,
place = {United States},
year = {Fri Feb 16 00:00:00 EST 2018},
month = {Fri Feb 16 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1364/OPTICA.5.000213

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Cited by: 2 works
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Works referenced in this record:

Taming the Blackbody with Infrared Metamaterials as Selective Thermal Emitters
journal, July 2011


Absorber and emitter for solar thermo-photovoltaic systems to achieve efficiency exceeding the Shockley-Queisser limit
journal, January 2009

  • Rephaeli, Eden; Fan, Shanhui
  • Optics Express, Vol. 17, Issue 17, p. 15145-15159
  • DOI: 10.1364/OE.17.015145

High-temperature stability and selective thermal emission of polycrystalline tantalum photonic crystals
journal, January 2013

  • Rinnerbauer, Veronika; Yeng, Yi Xiang; Chan, Walker R.
  • Optics Express, Vol. 21, Issue 9, p. 11482-11491
  • DOI: 10.1364/OE.21.011482

Design and global optimization of high-efficiency thermophotovoltaic systems
journal, January 2010

  • Bermel, Peter; Ghebrebrhan, Michael; Chan, Walker
  • Optics Express, Vol. 18, Issue S3, p. A314-A334
  • DOI: 10.1364/OE.18.00A314

Performance analysis of experimentally viable photonic crystal enhanced thermophotovoltaic systems
journal, January 2013

  • Yeng, Yi Xiang; Chan, Walker R.; Rinnerbauer, Veronika
  • Optics Express, Vol. 21, Issue S6, p. A1035-A1051
  • DOI: 10.1364/OE.21.0A1035

Three-dimensional self-assembled photonic crystals with high temperature stability for thermal emission modification
journal, October 2013

  • Arpin, Kevin A.; Losego, Mark D.; Cloud, Andrew N.
  • Nature Communications, Vol. 4, Article No. 2630
  • DOI: 10.1038/ncomms3630

Solar thermophotovoltaic energy conversion systems with two-dimensional tantalum photonic crystal absorbers and emitters
journal, March 2014

  • Nam, Youngsuk; Yeng, Yi Xiang; Lenert, Andrej
  • Solar Energy Materials and Solar Cells, Vol. 122, p. 287-296
  • DOI: 10.1016/j.solmat.2013.12.012

Toward high-energy-density, high-efficiency, and moderate-temperature chip-scale thermophotovoltaics
journal, February 2013

  • Chan, W. R.; Bermel, P.; Pilawa-Podgurski, R. C. N.
  • Proceedings of the National Academy of Sciences, Vol. 110, Issue 14, p. 5309-5314
  • DOI: 10.1073/pnas.1301004110

A nanophotonic solar thermophotovoltaic device
journal, January 2014

  • Lenert, Andrej; Bierman, David M.; Nam, Youngsuk
  • Nature Nanotechnology, Vol. 9, Issue 2, p. 126-130
  • DOI: 10.1038/nnano.2013.286

Design and optimization of one-dimensional photonic crystals for thermophotovoltaic applications
journal, January 2004

  • Celanovic, Ivan; O�Sullivan, Francis; Ilak, Milos
  • Optics Letters, Vol. 29, Issue 8, p. 863-865
  • DOI: 10.1364/OL.29.000863

Thermophotovoltaic generation with selective radiators based on tungsten surface gratings
journal, October 2004

  • Sai, Hitoshi; Yugami, Hiroo
  • Applied Physics Letters, Vol. 85, Issue 16, p. 3399-3401
  • DOI: 10.1063/1.1807031

Three-dimensional photonic-crystal emitter for thermal photovoltaic power generation
journal, July 2003

  • Lin, S. Y.; Moreno, J.; Fleming, J. G.
  • Applied Physics Letters, Vol. 83, Issue 2, p. 380-382
  • DOI: 10.1063/1.1592614