曲线形石墨烯的太赫兹光响应

PROCEEDINGS OF INTERNATIONAL CONGRESS ON GRAPHENE, 2D MATERIALS AND APPLICATIONS (2D MATERIALS 2019) Pub Date : 2021-06-22 DOI:10.1063/5.0054940

Y. Vasilyev, S. Novikov

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引用次数: 0

摘要

我们报道了外延石墨烯器件的太赫兹光电性，其形状蜿蜒曲折，长度可达几厘米，宽度为几十微米。光响应信号测量波长为280、148和90微米(频率1、2)。和3.3太赫兹)为电子浓度、偏置电流、太赫兹辐射强度和磁场的函数。基于太赫兹辐射电子加热模型的光导机理很好地解释了实验结果。

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Terahertz photoresponse of meander-patterned graphene

We report terahertz photoconductivity in epitaxial graphene devices patterned in a meander shape with the length up to a few centimeters and the width of few tens of microns. The photoresponse signal was measured at wavelengths of 280, 148 and 90 microns (frequencies 1, 2. and 3.3 THz) as a function of the electron concentration, bias current, terahertz radiation intensity and magnetic field. The photoconductivity mechanism based on the model of electron heating by terahertz radiation well explains the experimental results.

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PROCEEDINGS OF INTERNATIONAL CONGRESS ON GRAPHENE, 2D MATERIALS AND APPLICATIONS (2D MATERIALS 2019)

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