کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1612376 | 1516309 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermoelectric properties of quaternary (Bi,Sb)2(Te,Se)3 compound
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermoelectric properties of quaternary (Bi,Sb)2(Te,Se)3 compound Thermoelectric properties of quaternary (Bi,Sb)2(Te,Se)3 compound](/preview/png/1612376.png)
چکیده انگلیسی
• Sb and Se spin–orbit coupling play a key role in the band structure.
• Substituted Bi/Sb and Te/Se have a limited impact on the transport coefficients.
• n-Type doping will be preferred for quaternary (Bi,Sb)2(Te,Se)3 compound.
The quaternary (Bi,Sb)2(Te,Se)3 compounds are investigated using first-principles study and Boltzmann transport theory. The energy band structure and density of states are studied in detail. The electronic transport coefficients are then calculated as a function of chemical potential. The figure of merit ZT is obtained assuming a constant relaxation time and an averaged thermal conductivity. Our theoretical result agrees well with previous experimental data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 584, 25 January 2014, Pages 13–18
Journal: Journal of Alloys and Compounds - Volume 584, 25 January 2014, Pages 13–18
نویسندگان
Pengfei Lu, Yiluan Li, Chengjie Wu, Zhongyuan Yu, Huawei Cao, Xianlong Zhang, Ningning Cai, Xuxia Zhong, Shumin Wang,