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Tritt, Terry M.
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Publications (7/7 displayed)
- 2015Synthesis of Non-uniformly Pr-doped SrTiO3 Ceramics and Their Thermoelectric Propertiescitations
- 2015Enhanced thermoelectric figure-of-merit in thermally robust, nanostructured superlattices based on SrTiO3citations
- 2014Thermoelectric properties of strontium titanate superlattices incorporating niobium oxide nanolayerscitations
- 2014Doping site dependent thermoelectric properties of epitaxial strontium titanate thin filmscitations
- 2014Large thermoelectric power factor in Pr-doped SrTiO3-δ ceramics via grain-boundary-induced mobility enhancementcitations
- 2014Significant enhancement in thermoelectric properties of polycrystalline Pr-doped SrTiO3−δ ceramics originating from nonuniform distribution of Pr dopantscitations
- 2011Pulsed laser deposition and thermoelectric properties of In-and Yb-doped CoSb3 skutterudite thin filmscitations
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article
Large thermoelectric power factor in Pr-doped SrTiO3-δ ceramics via grain-boundary-induced mobility enhancement
Abstract
We report a novel synthesis strategy to prepare high-performance bulk polycrystalline Pr-doped SrTiO3 ceramics. A large thermoelectric power factor of 1.3 W m-1 K-1 at 500 °C is achieved in these samples. In-depth investigations of the electronic transport and microstructure suggest that this significant improvement results from a substantial enhancement in carrier mobility originating from the formation of Pr-rich grain boundaries. This work provides new directions to higher performance oxide thermoelectrics as well as possibly other properties and applications of this broadly functional perovskite material. © 2014 American Chemical Society.