论文标题
锯齿形双层磷纳米替苯的热电效率提高；边缘状态工程
Enhanced thermoelectric efficiency of zigzag bilayer phosphorene nanoribbon; edge states engineering
论文作者
论文摘要
从理论上讲，我们研究了锯齿形双层磷纳米骨（ZBPNR）的热电特性。我们首先，在扩展的Su-Schrieffer-Heeger（SSH）梯子和ZBPNR边缘状态之间进行类比，并通过分析获得其相应的频带结构和波函数。然后，通过应用能量滤波方法，我们表明在存在中间隙边缘状态的情况下，可以显着提高ZBPNR的电力和热电效率。我们还争论如何通过在边界上应用周期点电势来设计边缘模式以进一步优化系统的热电功率和效率。
We theoretically investigate the thermoelectric properties of zigzag bilayer phosphorene nanoribbons (ZBPNR). We first, draw an analogy between the extended Su-Schrieffer-Heeger (SSH) ladder and ZBPNR edge states and obtain their corresponding band structure and wave functions analytically. Then, by applying the energy filtering method, we show that the electric power and thermoelectric efficiency of the ZBPNRs can be improved remarkably in the presence of mid-gap edge states. We also argue how to engineer the edge modes to further optimize thermoelectric power and efficiency of the system by applying periodic point potentials at the boundaries.
