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  • QLu_InAs_SOLMAT_rev2

    Rights statement: This is the author’s version of a work that was accepted for publication in Solar Energy Materials and Solar Cells. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Solar Energy Materials and Solar Cells, 179, 2018 DOI: 10.1016/j.solmat.2017.12.031

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InAs thermophotovoltaic cells with high quantum efficiency for waste heat recovery applications below 1000°C

Research output: Contribution to journalJournal article

Published
<mark>Journal publication date</mark>1/06/2018
<mark>Journal</mark>Solar Energy Materials and Solar Cells
Volume179
Number of pages5
Pages (from-to)334-338
Publication statusPublished
Early online date29/12/17
Original languageEnglish

Abstract

InAs thermophotovoltaic (TPV) cells with external quantum efficiency at the peak wavelengths reaching 71% at low temperature and 55% at room temperature are reported, which are the highest values to date for InAs. The TPV exhibited 10% power conversion efficiency at 100 K cell temperature. The dark and light current-voltage characteristics were measured at different cell temperatures (100–340 K) in response to heat sources in the range 500–800 °C. The resulting dependences of the output voltage and current as well as the spectral response of the InAs TPV have been extensively characterized for waste heat recovery applications. The performance of these cells is strongly determined by the dark current which increases rapidly with increasing cell temperature originating from bandgap narrowing, which resulted in a reduction of open circuit voltage and output power.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Solar Energy Materials and Solar Cells. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Solar Energy Materials and Solar Cells, 179, 2018 DOI: 10.1016/j.solmat.2017.12.031