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Related Experiment Video

Updated: Jul 11, 2025

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Ultrahigh-quality graphene resonators by liquid-based strain-engineering.

Ding-Rui Chen1,2,3, I-Fan Hu1,4, Hao-Ting Chin1,2,3

  • 1Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, 10617, Taiwan. yphsieh@gate.sinica.edu.tw.

Nanoscale Horizons
|November 10, 2023
PubMed
Summary

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Strain engineering significantly enhances two-dimensional (2D) material-based nanoelectromechanical (NEM) resonators. A liquid-based tension process boosts performance, paving the way for advanced quantum systems.

Area of Science:

  • Materials Science
  • Quantum Physics
  • Nanotechnology

Background:

  • Two-dimensional (2D) material-based nanoelectromechanical (NEM) resonators are crucial for hybrid qubits, coupling mechanical and electromagnetic properties.
  • Current limitations in sensitivity and coherence time hinder the development of mechanohybrid quantum systems.

Purpose of the Study:

  • To demonstrate strain engineering as a method to enhance the performance of 2D material-based NEM resonators.
  • To achieve unprecedented performance metrics for 2D material resonators for quantum applications.

Main Methods:

  • A liquid-based tension process was applied to graphene resonators.
  • Spectroscopic and microscopic characterization techniques were employed to analyze the resonators.
  • Investigated the origin of performance enhancement through surface-energy interactions.

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Main Results:

  • A six-fold enhancement in resonance frequency and quality factor of graphene resonators was achieved.
  • Identified surface-energy enhanced wall interaction as the mechanism behind the performance boost.
  • Demonstrated near-ideal internal losses, outperforming previous 2D material devices.

Conclusions:

  • Strain engineering via liquid-based tension is a powerful method for enhancing 2D NEM resonators.
  • The developed resonators exhibit superior performance, addressing key challenges for mechanohybrid quantum systems.
  • This approach offers a pathway to realizing advanced quantum technologies utilizing 2D materials.