Article ID Journal Published Year Pages File Type
7740890 Journal of Power Sources 2013 4 Pages PDF
Abstract
We report on an effective increase in the Seebeck coefficient for 5% La-doped SrTiO3 nanoceramics at temperatures of 300-800 K through grain boundary doping with Nb, which results in an improvement of power factor by a value as high as 35%. This enhancement is likely due to the energy filtering effect at the Nb-doped grain boundaries with an enhanced potential barrier originating from the band offset between the boundaries and the interior of the grains.
Related Topics
Physical Sciences and Engineering Chemistry Electrochemistry
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