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Thermophotovoltaics bibliography

Description: A bibliography containing 180 entries on thermophotovoltaic conversion of energy between 1950 and 1994 has been compiled. The entries are categorized with respect to type and contents.
Date: September 1, 1994
Creator: Broman, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The First NREL Conference on thermophotovoltaic generation of electricity: Proceedings

Description: This collection of abstracts from the July 1994 meeting contains various information on thermophotovoltaic (TPV) conversion and converters. Discussed topics include: the current status of TPV conversion, TPV tutorials, heat source and emitter technologies, advanced TPV devices, selective emitter theory and practice, programmatic and systems issues, device fundamentals, and device and material characterization.
Date: August 1, 1994
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Analysis of TPV Network Losses (a Presentation)

Description: This talk focuses on the theoretical analysis of electrical losses associated with electrically networking large numbers of TPV cells to produce high power TPV power generators.
Date: December 8, 2004
Creator: DePoy, DM; Dashiell, MW; Rahner, DD; Danielson, LR; Oppenlander, JE; Vell, JL et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Final report for Frequency selective surfaces for rugged thermophotovoltaic emitters

Description: Ion Optics created an array of regularly spaced holes in a thin conductive surface film on a dielectric substrate. When heated, this pattern behaved as a selective emitter, with more than 50% of total radiation in a well-defined peak with a center frequency determined by geometrical spacing. Peak wavelength did not alter with change in temperature, and materials easily survived 10 hours at 1000 C in air. The selective emitter will increase efficiency of thermophotovoltaic power converters.
Date: April 5, 2001
Creator: Daly, James
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The spectral emittance and stability of coatings and textured surfaces for thermophotovoltaic (TPV) radiator applications

Description: Coatings or surface modifications are needed to improve the surface emissivity of materials under consideration for TPV radiator applications to a value of 0.8 or higher. Vacuum plasma spray coatings (ZrO{sub 2} + 18% TiO{sub 2} + 10% Y{sub 2}O{sub 3}, ZrC, Fe{sub 2}TiO{sub 5}, ZrTiO{sub 4}, ZrO{sub 2} + 8% Y{sub 2}O{sub 3} + 2% HfO{sub 2}, and Al{sub 2}O{sub 3} + TiO{sub 2}) and a chemical vapor deposited coating of rhenium whiskers were used to increase the surface emissivity of refractory me… more
Date: November 1, 2000
Creator: Cockeram, B.V. & Hollenbeck, J.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Thermophotovoltaic Cells on Zinc Diffused Polycrystalline GaSb

Description: For the first time, it has been demonstrated that thermophotovoltaic cells made of polycrystalline GaSb with small grain sizes (down to 100 x 100 {micro}m) have similar characteristics to the best Zinc diffused single crystal GaSb cells with identified device parameters. The grain boundaries in polycrystalline GaSb do not degrade TPV cell parameters, indicating that such material can be used for high-efficiency thermophotovoltaic cells.
Date: May 1, 2000
Creator: Sulima, O. V.; Bett, A. W.; Dutta, P. S.; Ehsani, H. & Gutmann, R. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A Monolithic Interconnected module with a tunnel Junction for Enhanced Electrical and Optical Performance

Description: An improved thermophotovoltaic (TPV) n/p/n device is provided. Monolithic Interconnected Modules (MIMs), semiconductor devices converting infrared radiation to electricity, have been developed with improved electrical and optical performance. The structure is an n-type emitter on a p-type base with an n-type lateral conduction layer. The incorporation of a tunnel junction and the reduction in the amount of p-type material used results in negligible parasitic absorption, decreased series resista… more
Date: June 30, 1999
Creator: Murray, Christopher Sean & Wilt, David Morgan
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Final Report: Bandgap-Engineered Thermophotovoltaic Devices for Hi Efficiency Radioisotope Power, July 9, 1996 - July 8, 1999

Description: During Phase I the feasibility of fabricating high-performance, low bandgap (0.58ev)PV cells by thermally diffusing p-n junctions in GaSb based quaternary materials was established. During phase II, bandgap engineered thermophotovoltaic (TPV) cells were optimized, development of a low-cost build source material for quaternary devices was investigated, and a diesel-fueled, TPV test-bed was built and tested allowing its performance to be characterized.
Date: March 15, 2000
Creator: Sundaram, V; Morgan, M.D. & Horne, W.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Lapped substrate for enhanced backsurface reflectivity in a thermophotovoltaic energy conversion system

Description: A method is described for fabricating a thermophotovoltaic energy conversion cell including a thin semiconductor wafer substrate having a thickness ({beta}) calculated to decrease the free carrier absorption on a heavily doped substrate; wherein the top surface of the semiconductor wafer substrate is provided with a thermophotovoltaic device, a metallized grid and optionally an antireflective (AR) overcoating; and, the bottom surface (10 ft) of the semiconductor wafer substrate is provided with… more
Date: December 31, 1996
Creator: Baldasaro, Paul F.; Brown, Edward J.; Charache, Greg W. & DePoy, David M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Double opposite-end tubesheet design for a thermovoltaic energy converter

Description: A method and apparatus are disclosed for the direct conversion of energy by thermovoltaic energy conversion having first and second tubesheets, at least one photon emitter plate secured to and extending from the first tubesheet, at least one cold plate secured to and extending from the second tubesheet, a plurality of thermovoltaic cells disposed along oppositely disposed exterior surfaces of the cold plate, and means cooperating with the tubesheet for maintaining a vacuum between the photon em… more
Date: December 1, 1997
Creator: Ashcroft, John M.; Campbell, Brain C. & DePoy, David M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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A thermovoltaic semiconductor device including a plasma filter

Description: A thermovoltaic energy conversion device and related method for converting thermal energy into an electrical potential are disclosed. An interference filter is provided on a semiconductor thermovoltaic cell to pre-filter black body radiation. The semiconductor thermovoltaic cell includes a P/N junction supported on a substrate which converts incident thermal energy below the semiconductor junction band gap into electrical potential. The semiconductor substrate is doped to provide a plasma filte… more
Date: December 1, 1997
Creator: Baldasaro, Paul F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Bulk single crystal ternary substrates for a thermophotovoltaic energy conversion system

Description: A thermophotovoltaic energy conversion device and a method for making the device are disclosed. The device includes a substrate formed from a bulk single crystal material having a bandgap (E{sub g}) of 0.4 eV < E{sub g} < 0.7 eV and an emitter fabricated on the substrate formed from one of a p-type and an n-type material. Another thermophotovoltaic energy conversion device includes a host substrate formed from a bulk single crystal material and lattice-matched ternary or quaternary III-V semico… more
Date: December 31, 1996
Creator: Charache, Greg W.; Baldasaro, Paul F. & Nichols, Greg J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Emissivity enhancement coatings for thermophotovoltaic (TPV) radiator applications

Description: Ten emissivity enhancing coatings (ZrO{sub 2} + 18% TiO{sub 2} + 10% Y{sub 2}O{sub 3}, Cr{sub 2}O{sub 3}, ZrC, Fe{sub 2}TiO{sub 5}, ZrTiO{sub 4}, ZrO{sub 2} + 8% Y{sub 2}O{sub 3} + 2% HfO{sub 2}, TiC, TiC + 5% Al{sub 2}O{sub 3} + 5% TiO{sub 2}, ZrB{sub 2}, and ZrB{sub 2} + 10% MoSi{sub 2}) deposited on Mo, Nb, and Haynes 230 substrates were evaluated for potential use in thermophotovoltaic (TPV) radiator applications. Emissivity testing of as-coated and annealed coupons indicate that 5 of the 1… more
Date: December 1, 1998
Creator: Yue, J.J. & Cockeram, B.V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A thermophotovoltaic energy conversion device

Description: A thermophotovoltaic device and a method for making the thermophotovoltaic device are disclosed. The device includes an n-type semiconductor material substrate having top and bottom surfaces, a tunnel junction formed on the top surface of the substrate, a region of active layers formed on top of the tunnel junction and a back surface reflector (BSR). The tunnel junction includes a layer of heavily doped n-type semiconductor material that is formed on the top surface of the substrate and a layer… more
Date: December 31, 1996
Creator: Charache, G. W.; Baldasaro, P. F. & Egley, J. L.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Spectral utilization in thermophotovoltaic devices

Description: Multilayer assemblies of epitaxially-grown, III-V semiconductor materials are being investigated for use in thermophotovoltaic (TPV) energy conversion applications. It has been observed that thick, highly-doped semiconductor layers within cell architectures dominate the parasitic free-carrier absorption (FCA) of devices at wavelengths above the bandgap of the semiconductor material. In this work, the wavelength-dependent, free-carrier absorption of p- and n-type InGaAs layers grown epitaxially … more
Date: 1997~
Creator: Clevenger, Marvin B. & Murray, Christopher S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Segregated tandem filter for enhanced conversion efficiency in a thermophotovoltaic energy conversion system

Description: A filter system to transmit short wavelength radiation and reflect long wavelength radiation for a thermophotovoltaic energy conversion cell comprises an optically transparent substrate segregation layer with at least one coherent wavelength in optical thickness; a dielectric interference filter deposited on one side of the substrate segregation layer, the interference filter being disposed toward the source of radiation, the interference filter including a plurality of alternating layers of hi… more
Date: December 31, 1996
Creator: Brown, Edward J.; Baldasaro, Paul F. & Dziendziel, Randolph J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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An overview of thermophotovoltaic generation of electricity

Description: This paper provides an overview of the developments in thermophotovoltaic (TPV) generation of electricity that have occurred relatively recently-from about 1994 to October 1998. The components considered are the semiconductor converter; the radiator; and the means of recirculating unusable, long-wavelength photons. A short account of the functions and performance of each of these components is given. Also discussed are operational systems and progress in modeling TPV systems.
Date: September 9, 1999
Creator: Coutts, T.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Recombination Lifetime of InxGa1-xAs Alloys Used in Thermophotovoltaic Converters

Description: The family of ternary compounds of composition InxGa1-xAs are of considerable interest for thermophotovoltaic energy converters. The recombination lifetimes of the various compositions are critical to the successful application of these materials as efficient converters. Here we will describe experimental results on the composition. In0.53Ga0.47 that is lattice-matched to InP. We will also describe lifetime results on the compositions In0.68Ga0.32As, with bandgap of 0.60 eV to compositions In0.… more
Date: February 16, 1999
Creator: Ahrenkiel, R. K.; Ellingson, R.; Johnston, S.; Webb, J.; Carapella, J. & Wanlass, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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SMALL OIL BURNER CONCEPTS BASED ON LOW PRESSURE AIR ATOMIZATION

Description: The development of several novel oil burner applications based on low pressure air atomization is described. The atomizer used is a prefilming, airblast nozzle of the type commonly used in gas turbine combustion. The air pressure used can be as low as 1,300 Pa and such pressure can be easily achieved with a fan. Advantages over conventional, pressure-atomized nozzles include ability to operate at low input rates without very small passages and much lower fuel pressure requirements. The developm… more
Date: March 16, 2000
Creator: Butcher, T.; Celebi, Y.; Wei, G. & Kamath, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Proceedings of the 1998 oil heat technology conference

Description: The 1998 Oil Heat Technology Conference was held on April 7--8 at Brookhaven National Laboratory (BNL) under sponsorship by the US Department of Energy, Office of Building Technologies, State and Community Programs (DOE/BTS). The meeting was held in cooperation with the Petroleum Marketers Association of America (PMAA). Fourteen technical presentations was made during the two-day program, all related to oil-heat technology and equipment, these will cover a range of research, developmental, and … more
Date: April 1, 1998
Creator: McDonald, R. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A tube-in-tube thermophotovoltaic generator

Description: A thermophotovoltaic device includes at least one thermal radiator tube, a cooling tube concentrically disposed within each thermal radiator tube and an array of thermophotovoltaic cells disposed on the exterior surface of the cooling tube. A shell having a first end and a second end surrounds the thermal radiator tube. Inner and outer tubesheets, each having an aperture corresponding to each cooling tube, are located at each end of the shell. The thermal radiator tube extends within the shell … more
Date: December 31, 1996
Creator: Ashcroft, J.; Campbell, B. & Depoy, D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
open access

The development and testing of emissivity enhancement coatings for thermophotovoltaic (TPV) radiator applications

Description: One requirement of a thermophotovoltaic (TPV) radiator is to efficiently emit photons at high temperatures to TPV cells for conversion to electric power. Because many candidate radiator materials with adequate structural properties display low emissivity, coatings or other surface modifications are required for enhancement of emissivity. Six plasma sprayed coatings and one textured surface demonstrated adequate thermal stability and emittance values of 0.8 or greater. Promising attributes of mo… more
Date: March 1, 1999
Creator: Cockeram, B.V.; Measures, D.P. & Mueller, A.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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