石墨烯层作为二维纳米电极用于太赫兹连续波产生的实验研究

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Pub Date : 2019-09-01 DOI:10.1109/IRMMW-THz.2019.8874024

A. Jumaah, S. Al-Daffaie, O. Yilmazoglu, F. Küppers, T. Kusserow

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引用次数: 5

摘要

研究了石墨烯作为二维纳米电极在太赫兹(THz)连续波(CW)光合成器件中的应用效果。将多层石墨烯(6-8和3-5 MLG)片用作低温生长(LTG) GaAs光导体上的六指间纳米电极。MLG纳米电极具有较高的短路电流能力和可靠的高光电流特性。石墨烯层数对石墨烯纳米电极的电学和光学性能有很大影响。一方面，更薄的石墨烯增加了纳米电极的透明度，提高了功率转换效率，另一方面，更厚的石墨烯需要携带高电流密度，增强了光电合成性能。

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Experimental Investigation of Graphene Layers as 2D Nanoelectrode for Continuous Wave Terahertz Generation

The effect of using graphene as 2D nanoelectrode for continuous wave (CW) terahertz (THz) photomixers were investigated. The multilayer graphene (6–8 and 3–5 MLG) sheets were used as six-finger interdigital nanoelectrodes on a low- temperature-grown (LTG) GaAs photoconductor. The MLG nanoelectrode shows unique properties with high short-circuit current capabilities and reliable high photocurrents. The number of graphene layers play a big role on the electrical and the optical properties of graphene nanoelectrode. In one hand, a thinner graphene increases the transparency of the nanoelectrodes to improve the power conversion efficiency, and on the other hand, a thicker graphene is required to carry high current densities and enhance the photomixer performance.

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2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

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