کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7740890 1497991 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nb-doped grain boundary induced thermoelectric power factor enhancement in La-doped SrTiO3 nanoceramics
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Nb-doped grain boundary induced thermoelectric power factor enhancement in La-doped SrTiO3 nanoceramics
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 241, 1 November 2013, Pages 255-258
نویسندگان
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