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Review of recent thermophotovoltaic (TPV) research at Lewis Research CenterThermophotovoltaic (TPV) research at NASA Lewis Research Center that began in the late 1980's is reviewed. This work has been concentrated on low bandgap indium gallium arsenide (InGaAs) PV cells and rare earth yttrium aluminum garnet (YAG) thin film selective emitters, as well as, TPV system studies. An emittance theory has been developed for the thin film emitters. Experimental spectral emittance results for erbium Er-YAG and holmium Ho-YAG show excellent emittance (greater than or equal to .7) within the emission bands. The .75 eV InGaAs PV cells fabricated at Lewis have excellent quantum efficiency. An efficiency of 13% has been measured for this cell coupled to an Er-YAG selective emitter and a short pass IR filter.
Document ID
19960045590
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chubb, Donald L.
(NASA Lewis Research Center Cleveland,OH United States)
Good, Brian S.
(NASA Lewis Research Center Cleveland,OH United States)
Wilt, David M.
(NASA Lewis Research Center Cleveland,OH United States)
Lowe, Roland A.
(Essential Research, Inc. Cleveland, OH United States)
Fatemi, Navid S.
(Essential Research, Inc. Cleveland, OH United States)
Hoffman, Richard H.
(Essential Research, Inc. Cleveland, OH United States)
Scheiman, David
(NYMA, Inc. Brook Park, OH United States)
Date Acquired
August 17, 2013
Publication Date
February 1, 1996
Publication Information
Publication: Space Photovoltaic Research and Technology 1995
Subject Category
Energy Production And Conversion
Accession Number
96N32493
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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