Thermophotovoltaic Spectral Control

DePoy, D.M.; Fourspring, Patrick M.; Brown, Edward J.; Rahmlow, Thomas D.; Lazo-Wassem, Jeanne; Gratrix, Edward J.

doi:10.2514/6.2004-5762

Cited by 4 publications

(2 citation statements)

References 32 publications

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“…Careful attention was paid to the selection of the individual filter and the individual MIM to assure that the filter turn-on wavelength coincided with the bandedge of the MIM quantum efficiency (ref. 24). …”

Section: Figure 52-creare Rtpv 3x3 Mim Arraymentioning

confidence: 99%

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NASA's Advanced Radioisotope Power Conversion Technology Development Status

Anderson

Sankovic

Wilt

et al. 2007

2007 IEEE Aerospace Conference

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NASA's Advanced Radioisotope Power Systems (ARPS) project is developing the next generation of radioisotope power conversion technologies that will enable future missions that have requirements that cannot be met by either photovoltaic systems or by current radioisotope power systems (RPSs). Requirements of advanced RPSs include high efficiency and high specific power (watts/kilogram) in order to meet future mission requirements with less radioisotope fuel and lower mass so that these systems can meet requirements for a variety of future space applications, including continual operation surface missions, outerplanetary missions, and solar probe. These advances would enable a factor of 2 to 4 decrease in the amount of fuel required to generate electrical power. Advanced RPS development goals also include long-life, reliability, and scalability. This paper provides an update on the contractual efforts under the Radioisotope Power Conversion Technology (RPCT) NASA Research Announcement (NRA) for research and development of Stirling, thermoelectric, and thermophotovoltaic power conversion technologies. The paper summarizes the current RPCT NRA efforts with a brief description of the effort, a status and/or summary of the contractor's key accomplishments, a discussion of upcoming plans, and a discussion of relevant system-level benefits and implications. The paper also provides a general discussion of the benefits from the development of these advanced power conversion technologies and the eventual payoffs to future missions (discussing system benefits due to overall improvements in efficiency, specific power, etc.).

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Section: Figure 52-creare Rtpv 3x3 Mim Arraymentioning

confidence: 99%

“…24). Thus, there exists a parameter space for optimization of RTPV performance characteristics to suit the requirements of the specific mission.…”

Section: Creare Tpv Convertor Plansmentioning

confidence: 99%

NASA's Advanced Radioisotope Power Conversion Technology Development Status

Anderson

Sankovic

Wilt

et al. 2007

2007 IEEE Aerospace Conference

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Investigation of one-dimensional Si/SiO2 hotonic crystals for thermophotovoltaic filter

Liu

Xuan

Han

et al. 2008

Sci. China Ser. E-Technol. Sci.

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The spectral control is widely incorporated with the thermophotovoltaic (TPV) technology to improve the optical-electric conversion efficiency of the whole system. In order to match with GaSb photovoltaic cell, an 8-layer one-dimensional photonic crystals (PC) filter structure was designed as quarter-wave periodic structure by selecting silicon (Si) and silicon dioxide (SiO 2 ) as candidate materials. The multilayer Si/SiO 2 structure was developed for the matching filter to simultaneously realize the optimal matching with the spectral distribution of the high temperature emitter and the quantum efficiency of GaSb cell. The physical vapor deposition (PVD) method was used to fabricate the optical filter and the normal incidence optical property of the filter was measured within the spectral range from 0.7 to 3.3 μm. These experimental data were used to predict the spectral control performance in a TPV system. Finally, temperature performance experiments were carried out to establish its withstanding performance in high temperature environment. spectral filter, optical property, thermophotovoltaics, one-dimensional photonic crystalsThe thermophotovoltaic (TPV) technology is a new promising approach that directly converts the radiated thermal energy emitted from a high temperature emitter into electricity using the photovoltaic effects of semiconductor materials [1,2] . Although the concept of TPV was first proposed in 1960s, some defects and difficulties in semiconductor trapped its developments. Until the 1990s rapid progresses in III-IV semiconductor materials with low band gap energy greatly stimulated the developments of TPV technology. Recently, more and more efforts have been concentrated on improving the optical-electrical conversion efficiency and application issues of a TPV system.The investigation on a TPV system mainly focuses on increasing its conversion efficiency and power density. For such purpose, the spectral control of thermal radiation from an emitter to a

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Selective emitter materials and designs for high-temperature thermophotovoltaic applications

Wang

Kortge

et al. 2022

Solar Energy Materials and Solar Cells

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Thermophotovoltaic Spectral Control

Cited by 4 publications

References 32 publications

NASA's Advanced Radioisotope Power Conversion Technology Development Status

NASA's Advanced Radioisotope Power Conversion Technology Development Status

Investigation of one-dimensional Si/SiO2 hotonic crystals for thermophotovoltaic filter

Selective emitter materials and designs for high-temperature thermophotovoltaic applications

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