Millimeter- Wave Detection on Basis of Graphene Photo-Thermoelectric Effect

Yukang Feng, M. Dejarld, R. Weikle, Linli Xie, P. Campbell, R. Myers-Ward, D. Gaskill, N. Scott Barker
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Abstract

In this paper, millimeter-wave detection is conducted for the first time on the basis of graphene photo-thermoelectric effect. Upon receiving millimeter-wave radiation, graphene generates hot carriers which diffuse towards the nearby drain and source contact metals, and causing a differential drain-source voltage. To optimize detection performance, devices with different drain and source contact metals as well as graphene geometries are designed and tested. Measured results show that using Yb-graphene-Au metal combination with a 25 μm contact length perform the best, with a responsivity of 1.99 V/W.
基于石墨烯光热电效应的毫米波探测
本文首次基于石墨烯光热电效应进行了毫米波探测。在接收毫米波辐射时,石墨烯产生热载子,热载子向附近的漏极和源极接触金属扩散,并产生差动漏极-源极电压。为了优化检测性能,设计和测试了具有不同漏极和源极接触金属以及石墨烯几何形状的器件。测量结果表明,接触长度为25 μm的钇-石墨烯-金组合性能最佳,响应率为1.99 V/W。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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