The Status of Thermophotovoltaic Energy Conversion Technology at Lockheed Martin Corp.

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In a thermophotovoltaic (TPV) energy conversion system, a heated surface radiates in the mid-infrared range onto photodiodes which are sensitive at these energies. Part of the absorbed energy is converted into electric output. Conversion efficiency is maximized by reducing the absorption of non-convertible energy with some form of spectral control. In a TPV system, many technology options exist. The development efforts have concentrated on flat-plate geometries with greybody radiators, low bandgap quaternary diodes, front surface tandem filters and a multi-chip module (MCM) approach that allows selective fabrication processes to match diode performance. Recently, the authors achieved conversion efficiencies of about ... continued below

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7365 Kilobytes pages

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Brown, E.J.; Baldasaro, P.F.; Burger, S.R.; Danielson, L.R.; DePoy, D.M.; Nichols, G.J. et al. January 31, 2003.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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  • Lockheed Martin
    Publisher Info: Lockheed Martin Corporation, Schenectady, NY 12301 (United States)
    Place of Publication: Schenectady, New York

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Description

In a thermophotovoltaic (TPV) energy conversion system, a heated surface radiates in the mid-infrared range onto photodiodes which are sensitive at these energies. Part of the absorbed energy is converted into electric output. Conversion efficiency is maximized by reducing the absorption of non-convertible energy with some form of spectral control. In a TPV system, many technology options exist. The development efforts have concentrated on flat-plate geometries with greybody radiators, low bandgap quaternary diodes, front surface tandem filters and a multi-chip module (MCM) approach that allows selective fabrication processes to match diode performance. Recently, the authors achieved conversion efficiencies of about 20% (radiator 950 C, diodes 22 C) for a module in a prototypic cavity test environment. These tests employed InGaAsSb diodes with 0.52 eV bandgap and front surface filters for spectral control. This paper provides details of the individual system components and describes the measurement technique used to record these efficiencies.

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7365 Kilobytes pages

Notes

OSTI as DE00821963

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  • Other Information: PBD: 31 Jan 2003

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  • Report No.: LM-02K155
  • Grant Number: AC12-00SN39357
  • DOI: 10.2172/821963 | External Link
  • Office of Scientific & Technical Information Report Number: 821963
  • Archival Resource Key: ark:/67531/metadc780219

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  • January 31, 2003

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  • Dec. 3, 2015, 9:30 a.m.

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  • April 28, 2016, 9:44 p.m.

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Brown, E.J.; Baldasaro, P.F.; Burger, S.R.; Danielson, L.R.; DePoy, D.M.; Nichols, G.J. et al. The Status of Thermophotovoltaic Energy Conversion Technology at Lockheed Martin Corp., report, January 31, 2003; Schenectady, New York. (digital.library.unt.edu/ark:/67531/metadc780219/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.