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Title: Thermophotovoltaic Arrays for Electrical Power Generation

Abstract

Sarnoff has designed an integrated array of thermophotovoltaic (TPV) cells based on the In(Al)GaAsSb/GaSb materials system. These arrays will be used in a system to generate electrical power from a radioisotope heat source that radiates at temperatures from 700 to 1000 C. Two arrays sandwich the slab heat source and will be connected in series to build voltage. Between the arrays and the heat source is a spectral control filter that transmits above-bandgap radiation and reflects below-bandgap radiation. The goal is to generate 5 mW of electrical power at 3 V from a 700 C radiant source. Sarnoff is a leader in antimonide-based TPV cell development. InGaAsSb cells with a bandgap of 0.53 eV have operated at system conversion efficiencies greater than 17%. The system included a front-surface filter, and a 905 C radiation source. The cells were grown via organo-metallic vapor-phase epitaxy. Sarnoff will bring this experience to bear on the proposed project. The authors first describe array and cell architecture. They then present calculated results showing that about 80 mW of power can be obtained from a 700 C radiator. Using a conservative array design, a 5-V output is possible.

Authors:
Publication Date:
Research Org.:
Lockheed Martin Corporation, Schenectady, NY 12301 (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
822278
Report Number(s):
LM-03K129
TRN: US0401229
DOE Contract Number:  
AC12-00SN39357
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 18 Nov 2003
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; 42 ENGINEERING; ARCHITECTURE; DESIGN; EPITAXY; HEAT SOURCES; POWER GENERATION; RADIATION SOURCES; RADIATIONS; RADIOISOTOPE HEAT SOURCES; NESDPS Office of Nuclear Energy Space and Defense Power Systems

Citation Formats

Sarnoff Corporation. Thermophotovoltaic Arrays for Electrical Power Generation. United States: N. p., 2003. Web. doi:10.2172/822278.
Sarnoff Corporation. Thermophotovoltaic Arrays for Electrical Power Generation. United States. doi:10.2172/822278.
Sarnoff Corporation. Tue . "Thermophotovoltaic Arrays for Electrical Power Generation". United States. doi:10.2172/822278. https://www.osti.gov/servlets/purl/822278.
@article{osti_822278,
title = {Thermophotovoltaic Arrays for Electrical Power Generation},
author = {Sarnoff Corporation},
abstractNote = {Sarnoff has designed an integrated array of thermophotovoltaic (TPV) cells based on the In(Al)GaAsSb/GaSb materials system. These arrays will be used in a system to generate electrical power from a radioisotope heat source that radiates at temperatures from 700 to 1000 C. Two arrays sandwich the slab heat source and will be connected in series to build voltage. Between the arrays and the heat source is a spectral control filter that transmits above-bandgap radiation and reflects below-bandgap radiation. The goal is to generate 5 mW of electrical power at 3 V from a 700 C radiant source. Sarnoff is a leader in antimonide-based TPV cell development. InGaAsSb cells with a bandgap of 0.53 eV have operated at system conversion efficiencies greater than 17%. The system included a front-surface filter, and a 905 C radiation source. The cells were grown via organo-metallic vapor-phase epitaxy. Sarnoff will bring this experience to bear on the proposed project. The authors first describe array and cell architecture. They then present calculated results showing that about 80 mW of power can be obtained from a 700 C radiator. Using a conservative array design, a 5-V output is possible.},
doi = {10.2172/822278},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {11}
}