太赫兹范围内三维石墨烯泡沫的光热转换和快速响应特性

2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Pub Date : 2018-09-01 DOI:10.1109/IRMMW-THZ.2018.8510128

Meng Chen, Yingxin Wang, Fei Fan, Yi Huang, Ziran Zhao

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引用次数: 0

摘要

本文报道了三维石墨烯泡沫通过光热电效应的快速太赫兹响应，并利用红外热成像技术研究了其光热转换特性。在热扩散长度范围小(0.7 mm)和响应时间短(21 ms)的情况下，获得了70 K (1.25 W/cm2, 2.52 THz)的高温升。这种材料可以作为太赫兹热探测器的理想吸收材料，实验结果证明，单层石墨烯的光热电响应可以在附着一小块三维石墨烯泡沫的情况下提高6倍。

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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Photothermal Conversion and Fast Response Properties of 3D Graphene Foam in the Terahertz Range

Fast terahertz response of three dimensional graphene foam through photothermoelectric effect is reported in this work with its photothermal conversion property investigated by infrared thermal imaging. A great temperature rise of 70 K (1.25 W/cm2, 2.52 THz) was obtained with a small thermal diffusion length scale of 0.7 mm and a short response time of 21 ms. This material can be used as an ideal absorber for terahertz thermal detector and experiment results proved that the photothermoelectric response of a single-layer graphene can be enhanced six times with a small block of three dimensional graphene foam adhering to it.

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2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

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