2D Material-Enabled Optical Rectennas with Ultrastrong Light-Electron Coupling

Hai Thai Nguyen, Zhi Long Yen, Yen Hsun Su, Ya Ping Hsieh, Mario Hofmann

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)


Optical rectennas extend the electromagnetic wave rectification process into the visible regime and provide a route toward high-performance photodetection and energy harvesting. Here, the promise of 2D materials toward on-chip optical rectennas is demonstrated. A self-aligned patterning process yields lateral MIM structures where a nanometer-sized air gap separates a 2D material contact from a metal electrode. This device can be scalably produced in large arrays using established microfabrication techniques. Different from previous approaches, the performance of the 2D rectenna can be adjusted through electrostatic gating. Optimization of the band alignment leads to strong rectification at wavelengths around 500 nm and clear polarization control. Comparison of wavelength-dependent rectenna performance with a photon-assisted tunneling model reveals a tenfold increase in photon-electron coupling over nanotube-based rectennas. The results highlight the potential of 2D material-based rectennas for future quantum computing applications.

出版狀態Published - 2022 9月 15

All Science Journal Classification (ASJC) codes

  • 生物技術
  • 化學 (全部)
  • 生物材料
  • 材料科學(全部)


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