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Proceedings Paper

Progress in Bi2Te3-based superlattice thermoelectric materials
Author(s): Gary E. Bulman; C. David Stokes; Phillip T. Barletta; Rama Venkatasubramanian
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Paper Abstract

Thin film superlattice (SL) based thermoelectric (TE) devices offer the potential for improved efficiency and high heat flux cooling over conventional bulk materials. We have demonstrated external cooling of 55K and heat pumping capacity of 128 W/cm2 in single couples and temperature differences as high as 102K in three stage cascade structures. The high heat flux pumping capacity of these in thin film devices are also attractive for hot-spot cooling in electronics. These same materials have also been successfully employed in power generation and energy harvesting applications. In this presentation, we will discuss recent RTI advances in Bi2Te3-based thin-film SL (TFSL) devices for cooling and energy harvesting applications.

Paper Details

Date Published: 17 May 2011
PDF: 9 pages
Proc. SPIE 8035, Energy Harvesting and Storage: Materials, Devices, and Applications II, 803510 (17 May 2011); doi: 10.1117/12.887143
Show Author Affiliations
Gary E. Bulman, RTI International (United States)
C. David Stokes, RTI International (United States)
Phillip T. Barletta, RTI International (United States)
Rama Venkatasubramanian, RTI International (United States)

Published in SPIE Proceedings Vol. 8035:
Energy Harvesting and Storage: Materials, Devices, and Applications II
Nibir K. Dhar; Priyalal S. Wijewarnasuriya; Achyut K. Dutta, Editor(s)

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