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Updated: Jun 28, 2025

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Functionalized MXene ink enables environmentally stable printed electronics.

Tae Yun Ko1,2,3, Heqing Ye4,5, G Murali6,7

  • 1Materials Architecturing Research Center, Korea Institute of Science and Technology, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul, 02792, South Korea.

Nature Communications
|April 24, 2024
PubMed

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Summary
This summary is machine-generated.

Researchers developed new MXene (a 2D material) for printable electronics. This functionalized MXene offers stable, conductive electrodes for thin-film transistors, enabling robust and environmentally stable MXene-based electronics (MXetronics).

Area of Science:

  • Materials Science
  • Nanotechnology
  • Electronics Engineering

Background:

  • Dependable electrical connections are crucial for advanced microelectronics.
  • MXenes offer excellent conductivity and processability but suffer from surface hydrophilicity, leading to degradation and poor dispersion.
  • This limits their application in solution-processed electronics.

Purpose of the Study:

  • To develop a solution-processable MXene material for robust electronic contacts.
  • To fabricate fully solution-processed thin-film transistors (TFTs) using functionalized MXene electrodes.
  • To demonstrate the potential of ligand-functionalized MXenes in printed electronics.

Main Methods:

  • Alkylation of Ti3C2Tx MXene with 3,4-dihydroxy-L-phenylalanine (AD-MXene).

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  • Fabrication of TFTs using electrohydrodynamic printing with AD-MXene as source, drain, and gate electrodes.
  • Characterization of AD-MXene dispersion stability, electrical conductivity, and device performance.

    • Main Results:

    • AD-MXene exhibited excellent dispersion stability in ethanol and maintained high electrical conductivity.
    • Solution-processed TFTs with AD-MXene electrodes outperformed those with traditional Au and Al electrodes.
    • The resulting transistors showed enhanced environmental stability due to AD-MXene's hydrophobicity.

    Conclusions:

    • Ligand-functionalized MXenes are viable for creating high-performance, solution-processed electronic contacts.
    • This approach enables the fabrication of environmentally robust and cost-effective MXene-based electronics (MXetronics).
    • The study promotes the use of functionalized MXenes in advanced printed electronic applications.