کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7933047 | 1512846 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Direction-dependent electronic thermal conductivity and thermopower of single-layer black phosphorus in the presence of bias voltage and dilute charged impurity
ترجمه فارسی عنوان
هدایت حرارتی الکترونیک وابسته به جهت و فسیل گرمادهی تک فاز سیاه و سفید در حضور ولتاژ تعصب و ناخالصی شارژ شده
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کلمات کلیدی
ناامیدی، عملکرد سبز، مواد ترموالکتریک فسفر سیاه، تقریبی متولد شد
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
By using the Green's function and the tight-binding model within the Born approximation, we obtain the electronic thermal conductivity (TC) and Seebeck coefficient [or thermopower (TP)] of monolayer black phosphorus (BP) under charged impurity doping. The results show that the TC and TP along the yâdirection are larger than the xâdirection in clean BP due to the inherent higher value of the electronic density of states in yâdirection. Furthermore, the TC linearly decreases with low impurity concentrations in both directions, whereas it decreases and does not change with low impurity scattering potentials in xâ and yâdirection, respectively. On the other hand, TP increases (decreases) with very dilute impurity concentrations and scattering potentials in xâ(yâ)direction. To be a complete work, we also studied these properties in impurity-infected biased BP. We found that the TC of BP in the presence of impurity gradually increases with bias voltage in both directions and TP has a decreasing (increasing) treatment in xâ(yâ)direction. Our findings move the thermoelectric (TE) applications of BP into promising TE materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 103, September 2018, Pages 76-80
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 103, September 2018, Pages 76-80
نویسندگان
H.D. Bui, Mohsen Yarmohammadi,