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Semitransparent thermophotovoltaics for efficient utilization of moderate temperature thermal radiation
Recent advances in thermophotovoltaic (TPV) power generation have produced notable gains in efficiency, particularly at very high emitter temperatures. However, there remains substantial room for improving TPV conversion of waste, solar, and nuclear heat streams at temperatures below 1,100°C. Here,...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
National Academy of Sciences
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9860151/ https://www.ncbi.nlm.nih.gov/pubmed/36409918 http://dx.doi.org/10.1073/pnas.2215977119 |
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author | Burger, Tobias Roy-Layinde, Bosun Lentz, Rebecca Berquist, Zachary J. Forrest, Stephen R. Lenert, Andrej |
author_facet | Burger, Tobias Roy-Layinde, Bosun Lentz, Rebecca Berquist, Zachary J. Forrest, Stephen R. Lenert, Andrej |
author_sort | Burger, Tobias |
collection | PubMed |
description | Recent advances in thermophotovoltaic (TPV) power generation have produced notable gains in efficiency, particularly at very high emitter temperatures. However, there remains substantial room for improving TPV conversion of waste, solar, and nuclear heat streams at temperatures below 1,100°C. Here, we demonstrate the concept of transmissive spectral control that enables efficient recuperation of below-bandgap photons by allowing them to transmit through the cell to be absorbed by a secondary emitter. We fabricate a semitransparent TPV cell consisting of a thin InGaAs–InP heterojunction membrane supported by an infrared-transparent heat-conducting substrate. The device absorbs less than 1% of below-bandgap radiation, resulting in a TPV efficiency of 32.5% at an emitter temperature of 1,036°C. To our knowledge, this represents an 8% absolute improvement (~33% relative) in efficiency relative to the best TPV devices at such low temperatures. By enabling near-zero photon loss, the semitransparent architecture facilitates high TPV efficiencies over a wide range of applications. |
format | Online Article Text |
id | pubmed-9860151 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | National Academy of Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-98601512023-05-21 Semitransparent thermophotovoltaics for efficient utilization of moderate temperature thermal radiation Burger, Tobias Roy-Layinde, Bosun Lentz, Rebecca Berquist, Zachary J. Forrest, Stephen R. Lenert, Andrej Proc Natl Acad Sci U S A Physical Sciences Recent advances in thermophotovoltaic (TPV) power generation have produced notable gains in efficiency, particularly at very high emitter temperatures. However, there remains substantial room for improving TPV conversion of waste, solar, and nuclear heat streams at temperatures below 1,100°C. Here, we demonstrate the concept of transmissive spectral control that enables efficient recuperation of below-bandgap photons by allowing them to transmit through the cell to be absorbed by a secondary emitter. We fabricate a semitransparent TPV cell consisting of a thin InGaAs–InP heterojunction membrane supported by an infrared-transparent heat-conducting substrate. The device absorbs less than 1% of below-bandgap radiation, resulting in a TPV efficiency of 32.5% at an emitter temperature of 1,036°C. To our knowledge, this represents an 8% absolute improvement (~33% relative) in efficiency relative to the best TPV devices at such low temperatures. By enabling near-zero photon loss, the semitransparent architecture facilitates high TPV efficiencies over a wide range of applications. National Academy of Sciences 2022-11-21 2022-11-29 /pmc/articles/PMC9860151/ /pubmed/36409918 http://dx.doi.org/10.1073/pnas.2215977119 Text en Copyright © 2022 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . |
spellingShingle | Physical Sciences Burger, Tobias Roy-Layinde, Bosun Lentz, Rebecca Berquist, Zachary J. Forrest, Stephen R. Lenert, Andrej Semitransparent thermophotovoltaics for efficient utilization of moderate temperature thermal radiation |
title | Semitransparent thermophotovoltaics for efficient utilization of moderate temperature thermal radiation |
title_full | Semitransparent thermophotovoltaics for efficient utilization of moderate temperature thermal radiation |
title_fullStr | Semitransparent thermophotovoltaics for efficient utilization of moderate temperature thermal radiation |
title_full_unstemmed | Semitransparent thermophotovoltaics for efficient utilization of moderate temperature thermal radiation |
title_short | Semitransparent thermophotovoltaics for efficient utilization of moderate temperature thermal radiation |
title_sort | semitransparent thermophotovoltaics for efficient utilization of moderate temperature thermal radiation |
topic | Physical Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9860151/ https://www.ncbi.nlm.nih.gov/pubmed/36409918 http://dx.doi.org/10.1073/pnas.2215977119 |
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