کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7990039 | 1516125 | 2018 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and enhanced thermoelectric performance of Pb-doped tetrahedrite Cu12-xPbxSb4S13
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Pb-doped tetrahedrite Cu12-xPbxSb4S13 (xâ¯=â¯0, 0.25, 0.50, 0.75, 1.00, 1.25 and 1.50) samples were prepared and their thermoelectric properties were investigated in the temperature range from 300â¯K to 723â¯K. The results show that Pb is successfully doped in Cu(1) site, which brings about both 10-118% increase in Seebeck coefficient owing to the decrease of hole concentration and 87-168% decrease in thermal conductivity due to the enhanced phonon scattering by the dopant atoms. As a result, a maximum ZTâ¯=â¯0.8â¯at 723â¯K is achieved for Cu11PbSb4S13, which is â¼43% larger than that of pristine Cu12Sb4S13. Present results demonstrate that Pb is an effective dopant to elevate thermoelectric performance of Cu12Sb4S13.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 769, 15 November 2018, Pages 478-483
Journal: Journal of Alloys and Compounds - Volume 769, 15 November 2018, Pages 478-483
نویسندگان
L.L. Huang, Y.S. Wang, C. Zhu, R. Xu, J.M. Li, J.H. Zhang, D. Li, Z.M. Wang, L. Wang, C.J. Song, H.X. Xin, J. Zhang, X.Y. Qin,