Journal ArticleDOI
Monolithic oxide–metal composite thermoelectric generators for energy harvesting
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TLDR
In this article, a multilayer co-fired ceramic thermoelectric generator with 50 pairs of p-i-n junctions of 5.9 mm, 7.0 mm, and 2.6 mm.Abstract:
Monolithic oxide–metal composite thermoelectric generators (TEGs) were fabricated using multilayer co-fired ceramic technology. These devices consisted of Ni0.9Mo0.1 and La0.035Sr0.965TiO3 as p- and n-type thermoelectric materials, and Y0.03Zr0.97O2 was used as an insulator, sandwiched between p- and n-type layers. To co-fire dissimilar materials, p-type layers contained 20 wt. % La0.035Sr0.965TiO3; thus, these were oxide–metal composite layers. The fabricated device had 50 pairs of p–i–n junctions of 5.9 mm × 7.0 mm × 2.6 mm. The calculated maximum value of the electric power output from the device was 450 mW/cm2 at ΔT = 360 K. Furthermore, this device generated 100 μW at ΔT = 10 K and operated a radio frequency (RF) transmitter circuit module assumed to be a sensor network system.read more
Citations
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A review of the state of the science on wearable thermoelectric power generators (TEGs) and their existing challenges
TL;DR: In this article, the human body has been considered as a good source of heat to harvest electrical energy through wearable thermoelectric generators, which may become an alternative power generation technique compared to other conventional ones used for many wearable devices.
Journal ArticleDOI
Self-powered wearable pressure sensing system for continuous healthcare monitoring enabled by flexible thin-film thermoelectric generator
TL;DR: In this paper, a self-powered wearable pressure sensing system is developed by integrating a conductive elastomer-based pressure sensor with a flexible thin-film thermoelectric generator (tf-TEG) to harvest body heat.
Journal ArticleDOI
Ferroelectric-thermoelectricity and Mott transition of ferroelectric oxides with high electronic conductivity
TL;DR: In this article, a review of ferroelectric oxides in the unusual condition where the concentration of electronic carriers is close to a metal-insulator transition is presented, and the phase transition temperature dependence on the carrier concentration and evidence for polarization coupling to the conductivity mechanism is discussed.
Feature article Ferroelectric-thermoelectricity and Mott transition of ferroelectric oxides with high electronic conductivity
TL;DR: In this paper, a review of ferroelectric oxides in the unusual condition where the concentration of electronic carriers is close to a metal-insulator transition is presented, and the phase transition temperature dependence on the carrier concentration and evidence for polarization coupling to the conductivity mechanism is discussed.
Journal ArticleDOI
Glass-like thermal conductivity in SrTiO3 thermoelectrics induced by A-site vacancies
S. R. Popuri,A. J. M. Scott,R. A. Downie,M. A. Hall,E. Suard,Rodolphe Decourt,M. Pollet,Jan-Willem G. Bos +7 more
TL;DR: In this paper, the A-site vacancies in SrTiO3 results in a glass-like thermal conductivity while Nb substituted samples maintains good electrical conductivity, which brings the material one step closer to being a high-performing phonon-glass electron-crystal thermoelectric material.
References
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Journal ArticleDOI
Thin-film thermoelectric devices with high room-temperature figures of merit
TL;DR: Th thin-film thermoelectric materials are reported that demonstrate a significant enhancement in ZT at 300 K, compared to state-of-the-art bulk Bi2Te3 alloys, and the combination of performance, power density and speed achieved in these materials will lead to diverse technological applications.
Journal ArticleDOI
Effect of quantum-well structures on the thermoelectric figure of merit.
TL;DR: In this article, the authors proposed to use quantum-well superlattice structures to enhance the performance of thermoelectric coolers and showed that layering has the potential to increase significantly the figure of merit of a highly anisotropic material.
Journal ArticleDOI
Giant thermoelectric Seebeck coefficient of a two-dimensional electron gas in SrTiO3
Hiromichi Ohta,Hiromichi Ohta,Sung Wng Kim,Yoriko Mune,Teruyasu Mizoguchi,Kenji Nomura,Shingo Ohta,Takashi Nomura,Yuki Nakanishi,Yuichi Ikuhara,Masahiro Hirano,Hideo Hosono,Kunihito Koumoto +12 more
TL;DR: The present approach using a 2DEG provides a new route to realize practical thermoelectric materials without the use of toxic heavy elements and enhances the Seebeck coefficient without reducing the electrical conductivity.
Journal ArticleDOI
Large thermoelectric response of metallic perovskites: Sr 1 − x La x TiO 3 ( 0 x 0 . 1 )
TL;DR: In this paper, a large power factor (defined as the Seebeck coefficient and resistivity) was found for single crystals of the Ti O 3d conduction band with a carrier density (n) of 0.1.
Journal ArticleDOI
Evaluation of thermoelectric modules for power generation
David Michael Rowe,Gao Min +1 more
TL;DR: In this article, a procedure is developed to assess the potential of thermoelectric modules when used for electrical power generation, and the results show that a thermocorlectric module is a promising device for low temperature waste heat recovery.