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Hybrid Back Surface Reflector GaInAsSb Thermophotovoltaic Devices.

DE2005836454

Publication Date	2004
Personal Author	Huang, R. K.; Wang, C. A.; Connors, M. K.; Turner, G. W.; Dashiell, M.
Page Count	14
Abstract	Back surface reflectors have the potential to improve thermophotovoltaic (TPV) device performance though the recirculation of infrared photons. The 'hybrid' back-surface reflector (BSR) TPV cell approach allows one to construct BSRs for TPV devices using conventional, high efficiency, GaInAsSb-based TPV material. The design, fabrication, and measurements of hybrid BSR-TPV cells are described. The BSR was shown to provide a 4 mV improvement in open-circuit voltage under a constant shortcircuit current, which is comparable to the 5 mV improvement theoretically predicted. Larger improvements in open-circuit voltage are expected in the future with materials improvements.
Keywords	Thermophotovoltaic converters Design Efficiency Fabrication Indium arsenides Aluminium Arsenides Gallium arsenides Photons
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Massachusetts Inst. of Tech., Lexington. Lincoln Lab.; Department of Energy, Washington, DC.; Lockheed Martin Corp., Schenectady, NY.
Supplemental Notes	Prepared in cooperation with Lockheed Martin Corp., Schenectady, NY. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200518

Hybrid Back Surface Reflector GaInAsSb Thermophotovoltaic Devices.

Hybrid Back Surface Reflector GaInAsSb Thermophotovoltaic Devices.
DE2005836454

Publication Date	2004
Personal Author	Huang, R. K.; Wang, C. A.; Connors, M. K.; Turner, G. W.; Dashiell, M.
Page Count	14
Abstract	Back surface reflectors have the potential to improve thermophotovoltaic (TPV) device performance though the recirculation of infrared photons. The 'hybrid' back-surface reflector (BSR) TPV cell approach allows one to construct BSRs for TPV devices using conventional, high efficiency, GaInAsSb-based TPV material. The design, fabrication, and measurements of hybrid BSR-TPV cells are described. The BSR was shown to provide a 4 mV improvement in open-circuit voltage under a constant shortcircuit current, which is comparable to the 5 mV improvement theoretically predicted. Larger improvements in open-circuit voltage are expected in the future with materials improvements.
Keywords	Thermophotovoltaic converters Design Efficiency Fabrication Indium arsenides Aluminium Arsenides Gallium arsenides Photons
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Massachusetts Inst. of Tech., Lexington. Lincoln Lab.; Department of Energy, Washington, DC.; Lockheed Martin Corp., Schenectady, NY.
Supplemental Notes	Prepared in cooperation with Lockheed Martin Corp., Schenectady, NY. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200518