کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5488821 1399585 2017 24 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of Sn-deficiency on thermoelectric properties of polycrystalline Sn1-xSe compounds
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Effects of Sn-deficiency on thermoelectric properties of polycrystalline Sn1-xSe compounds
چکیده انگلیسی
The effects of Sn-deficiency on the thermoelectric properties of polycrystalline Sn1-xSe (x = 0, 0.01, 0.02, and 0.04) compounds were investigated. The Sn-deficiency caused the formation of the SnSe2 secondary phase in the compounds, and the charge and thermal transport properties were affected significantly by the secondary phase. Although the Sn-deficient compounds exhibited higher thermal conductivities than stoichiometric compound due to its high thermal conductivity of SnSe2, significantly improved power factors led to the enhancement of ZT. The highest ZT of 0.61 at 848 K was achieved in Sn0.98Se compound, and detailed effects of SnSe2 on the enhancement were discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 17, Issue 5, May 2017, Pages 732-737
نویسندگان
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