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首页> 外文期刊>Physical review >Three-dimensional Analysis Of The Rectifying Properties Of Geometrically Asymmetric Metal-vacuum-metal Junctions Treated As An Oscillating Barrier
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Three-dimensional Analysis Of The Rectifying Properties Of Geometrically Asymmetric Metal-vacuum-metal Junctions Treated As An Oscillating Barrier

机译：几何不对称的金属-真空-金属结作为振动壁的整流特性的三维分析

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摘要

We study the rectification properties of geometrically asymmetric metal-vacuum-metal junctions treated as an oscillating barrier. In particular, we focus on systems in which an oscillating bias is established between a cathode characterized by a hemispherical protrusion and a flat anode. We propose a quantum-mechanical approach of this problem by using a transfer-matrix methodology, with developments that enable the time dependence of the external bias to be accounted for explicitly. This study extends the quasistatic analysis presented in our previous work. In particular, we study how the rectification properties of these junctions depend on the frequency and the amplitude of the oscillating barrier. We also determine the power this device could provide to an external load and the efficiency, with which the energy of an incident radiation can be converted into a useful dc. It is demonstrated that rectification of optical frequencies is possible by using the nanoscale device discussed in this paper.
机译：我们研究了作为振荡势垒的几何不对称金属-真空-金属结的整流特性。尤其是，我们专注于在以半球形凸起为特征的阴极和平坦阳极之间建立振荡偏置的系统。我们提出了一种使用转移矩阵方法解决此问题的量子力学方法，其发展使得能够明确考虑外部偏置的时间依赖性。这项研究扩展了我们先前工作中提出的准静态分析。特别是，我们研究了这些结的整流特性如何取决于振荡势垒的频率和幅度。我们还确定了该设备可以提供给外部负载的功率和效率，利用该效率可以将入射辐射的能量转换为有用的直流电。结果表明，使用本文讨论的纳米级器件可以对光频率进行整流。

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