کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1596974 1002878 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis, crystal structure and thermoelectric properties of IrSn1.5Te1.5 -based skutterudites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Synthesis, crystal structure and thermoelectric properties of IrSn1.5Te1.5 -based skutterudites
چکیده انگلیسی

The mixed anion skutterudite IrSn1.5Te1.5 has been synthesized and characterized by X-ray powder diffraction, thermopower and electrical resistivity measurements. Structural analysis reveals that Sn and Te order in layers perpendicular to the [111] direction of the skutterudite unit cell, and a distortion of the anion sublattice is evident. The thermopower (S)(S) is 160 μV/K at room temperature, while the electrical resistivity (ρ)(ρ) is 65mΩcm. The effects of chemical substitutions on the Ir site (Ru, Pd) and Sn site (In, Sb) have been investigated. The power factor (S2/ρ)(S2/ρ) was found to improve with In substitution but, at 0.9 μW/K2 cm, is too small for this material to be useful for thermoelectric applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 141, Issue 1, January 2007, Pages 38–41
نویسندگان
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