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Development of flexible micro-thermo-electrochemical generators based on ionic liquids
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Uhl, Stefanie, Laux, Edith, Journot, Tony, Jeandupeux, Laure, Charmet, Jérôme and Keppner, Herbert (2014) Development of flexible micro-thermo-electrochemical generators based on ionic liquids. Journal of Electronic Materials, 43 (10). pp. 3758-3764. doi:10.1007/s11664-014-3126-1 ISSN 0361-5235.
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Official URL: http://dx.doi.org/10.1007/s11664-014-3126-1
Abstract
The unfavourable relationship between electrical and thermal conductivity limits the choice of solid-state materials for thermoelectric generators (TEG). Among ionic liquids (IOL), it appears that a large variety of thermoelectric (TE) materials with promising high Seebeck coefficients have potential for development. Furthermore, the novel solid-on-liquid deposition technology (SOLID) allows the encapsulation of liquid TE materials to create new, highly integrated TEG devices. Following this vision, this paper studies a large number of IOLs looking at TE-relevant parameters such as thermal and electrical conductivity, Seebeck coefficient and temperature-dependent viscosity. We show that positive and negative Seebeck coefficients can be obtained, depending on the molecular structure and the viscosity of the IOL. The properties of single-junction TEGs are presented in terms of I–V characteristics correlated with the IOL properties. We prove that the limiting effect of conversion efficiency is the current density that can be extracted from a device rather than the Seebeck coefficient.
Item Type: | Journal Article | ||||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||
Journal or Publication Title: | Journal of Electronic Materials | ||||||||||
Publisher: | Springer New York LLC | ||||||||||
ISSN: | 0361-5235 | ||||||||||
Official Date: | October 2014 | ||||||||||
Dates: |
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Volume: | 43 | ||||||||||
Number: | 10 | ||||||||||
Page Range: | pp. 3758-3764 | ||||||||||
DOI: | 10.1007/s11664-014-3126-1 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access |
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