Terahertz Rectennas on Flexible Substrates Based on One-Dimensional Metal–Insulator–Graphene Diodes,ACS Applied Electronic Materials

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Terahertz Rectennas on Flexible Substrates Based on One-Dimensional Metal–Insulator–Graphene Diodes
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2021-08-27 , DOI: 10.1021/acsaelm.1c00134
Andreas Hemmetter _{1,

2} , Xinxin Yang ₃ , Zhenxing Wang ₁ , Martin Otto ₁ , Burkay Uzlu _{1,

2} , Marcel Andree ₄ , Ullrich Pfeiffer ₄ , Andrei Vorobiev ₃ , Jan Stake ₃ , Max C. Lemme _{1,

2} , Daniel Neumaier _{1,

5}

Affiliation

Flexible energy harvesting devices fabricated in scalable thin-film processes are crucial for wearable electronics and the Internet of Things. We present a flexible rectenna based on a one-dimensional junction metal–insulator–graphene diode, offering low-noise power detection at terahertz (THz) frequencies. The rectennas are fabricated on a flexible polyimide film in a scalable process by photolithography using graphene grown by chemical vapor deposition. A one-dimensional junction reduces the junction capacitance and enables operation up to 170 GHz. The rectenna shows a maximum responsivity of 80 V/W at 167 GHz in free space measurements and minimum noise equivalent power of 80 pW/√Hz.

中文翻译：

基于一维金属-绝缘体-石墨烯二极管的柔性基板上的太赫兹整流天线

采用可扩展薄膜工艺制造的柔性能量收集设备对于可穿戴电子产品和物联网至关重要。我们提出了一种基于一维结金属-绝缘体-石墨烯二极管的柔性整流天线，可在太赫兹 (THz) 频率下提供低噪声功率检测。通过使用化学气相沉积生长的石墨烯的光刻，在可扩展的过程中在柔性聚酰亚胺薄膜上制造整流天线。一维结降低了结电容并支持高达 170 GHz 的操作。整流天线在 167 GHz 自由空间测量中的最大响应率为 80 V/W，最小噪声等效功率为 80 pW/√Hz。

更新日期：2021-09-28

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