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Thermoelectric power generation efficiency of zigzag monolayer nanoribbon of Bismuth
Nanotechnology ( IF 2.9 ) Pub Date : 2020-06-30 , DOI: 10.1088/1361-6528/ab946f Hossein Karbaschi 1 , Nafise Nouri , Mohsen Rezaei , Gholamreza Rashedi
Nanotechnology ( IF 2.9 ) Pub Date : 2020-06-30 , DOI: 10.1088/1361-6528/ab946f Hossein Karbaschi 1 , Nafise Nouri , Mohsen Rezaei , Gholamreza Rashedi
Affiliation
The thermoelectric power generation efficiency of Bismuth monolayer nanoribbon has been studied theoretically. We calculate the conductance of such a structure using the multi-orbital tight-binding model and also recursive Green's function method, in the presence of substrate and on-site potential. For the case of SiC substrate-supported Bismuth nanoribbon and by proper selection of on-site potential, a boxcar shape conductance in terms of energy has been obtained. Using the Landauer-Büttiker formalism in the nonlinear response regime, we calculate heat and charge currents at low temperatures. By calculation of the electrical output power and power conversion thermoelectric efficiency, we have illustrated that such a structure can operate at high thermoelectric efficiency and also at a considerable power generation rate.
中文翻译:
铋的锯齿形单层纳米带的热电发电效率
已经从理论上研究了铋单层纳米带的热电发电效率。我们使用多轨道紧束缚 模型和递归格林函数方法计算这种结构的电导, 在存在底物和现场电位的情况下 。For the case of SiC substrate-supported Bismuth nanoribbon and by proper selection of on-site potential, a boxcar shape conductance in terms of energy has been obtained. 在非线性响应体系中使用 Landauer- B üttiker 形式主义,我们计算低温下的热量和充电电流。通过计算电输出功率和功率转换热电效率,我们已经说明这种结构可以在高热电效率和相当大的发电率下运行。
更新日期:2020-06-30
中文翻译:
铋的锯齿形单层纳米带的热电发电效率
已经从理论上研究了铋单层纳米带的热电发电效率。我们使用多轨道紧束缚 模型和递归格林函数方法计算这种结构的电导, 在存在底物和现场电位的情况下 。For the case of SiC substrate-supported Bismuth nanoribbon and by proper selection of on-site potential, a boxcar shape conductance in terms of energy has been obtained. 在非线性响应体系中使用 Landauer- B üttiker 形式主义,我们计算低温下的热量和充电电流。通过计算电输出功率和功率转换热电效率,我们已经说明这种结构可以在高热电效率和相当大的发电率下运行。