کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5438068 | 1398180 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced thermoelectric power factor and low thermal conductivity in one-dimensional Te/Ag2Te composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We reports the synthesis and characterization of Te/Ag2Te nanorod composites with various Ag2Te contents. The composite samples were prepared by mixing Te and Ag2Te nanorods synthesized by polyvinylpyrrolidone (PVP)-assisted solution-phase mixing. The thermoelectric properties of the prepared composites vary according to the Ag2Te content. Furthermore, the samples exhibit an enhancement in electrical conductivity and a reduction in the Seebeck coefficient with increasing Ag2Te content. The maximum power factor (350.71 µV/K at room temperature) is observed for the sample containing 30% Ag2Te. The samples were assembled as 1D nanostructures, which led to a decrease in thermal conductivity owing to the strong phonon scattering effect. The maximum thermoelectric figure of merit (ZT) at room temperature, 0.34 was obtained for the sample with 30% Ag2Te content. This value is 480% larger than that obtained for the pristine Te nanorod samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 14, 1 October 2017, Pages 11156-11162
Journal: Ceramics International - Volume 43, Issue 14, 1 October 2017, Pages 11156-11162
نویسندگان
Dabin Park, Hyun Ju, Jooheon Kim,