Electrocaloric devices based on thini-film heat switches

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Description

We describe a new approach to refrigeration and electrical generation that exploits the attractive properties of thin films of electrocaloric materials. Layers of electrocaloric material coupled with thin-film heat switches can work as either refrigerators or electrical generators, depending on the phasing of the applied voltages and heat switching. With heat switches based on thin layers of liquid crystals, the efficiency of these thin-film heat engines can be at least as high as that of current thermoelectric devices. Advanced heat switches would enable thin-film heat engines to outperform conventional vaporcompression devices.

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064509

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Epstein, Richard I & Malloy, Kevin J January 1, 2009.

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Description

We describe a new approach to refrigeration and electrical generation that exploits the attractive properties of thin films of electrocaloric materials. Layers of electrocaloric material coupled with thin-film heat switches can work as either refrigerators or electrical generators, depending on the phasing of the applied voltages and heat switching. With heat switches based on thin layers of liquid crystals, the efficiency of these thin-film heat engines can be at least as high as that of current thermoelectric devices. Advanced heat switches would enable thin-film heat engines to outperform conventional vaporcompression devices.

Physical Description

064509

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  • Journal Name: Journal of Applied Physics; Journal Volume: 106; Journal Issue: 6

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  • Report No.: LA-UR-09-00321
  • Report No.: LA-UR-09-321
  • Grant Number: AC52-06NA25396
  • DOI: 10.1063/1.3190559 | External Link
  • Office of Scientific & Technical Information Report Number: 956526
  • Archival Resource Key: ark:/67531/metadc926610

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 2009

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 5:47 p.m.

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Epstein, Richard I & Malloy, Kevin J. Electrocaloric devices based on thini-film heat switches, article, January 1, 2009; [New Mexico]. (digital.library.unt.edu/ark:/67531/metadc926610/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.