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Updated: Jun 18, 2025

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Highly Efficient Laser Bidirectional Graphene Printing: Integration of Synthesis, Transfer and Patterning.

Yunfan Li1, Ziran Zeng1, Shizhuo Zhang2

  • 1School of Power and Mechanical Engineering, Wuhan University, Wuhan, Hubei, 430072, China.

Small (Weinheim an Der Bergstrasse, Germany)
|July 29, 2024
PubMed
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A new laser bidirectional graphene printing (LBGP) method efficiently creates patterned graphene films. This low-cost process enables large-scale production for advanced electronics and sensors.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Laser Processing

Background:

  • Graphene's exceptional properties offer significant potential for advanced electronics.
  • Current graphene preparation methods are often complex, costly, and inefficient, hindering device development.

Purpose of the Study:

  • To introduce a novel, efficient, and scalable method for preparing patterned graphene films.
  • To demonstrate the application of the fabricated graphene films in flexible pressure sensors and Joule heating devices.

Main Methods:

  • Development of a laser bidirectional graphene printing (LBGP) process using a nanosecond pulsed laser.
  • Irradiation of a sandwich sample (thermoplastic elastomer substrate, carbon precursor, glass cover) to convert carbon precursor into graphene via photothermal effect.
Keywords:
bidirectionalgraphenehigh efficiencyintegrationlaser printing

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  • Simultaneous synthesis, transfer, and patterning of two face-to-face graphene films in a single step.

    • Main Results:

    • LBGP successfully produced patterned graphene films on a thermoplastic elastomer substrate.
    • The graphene patterns exhibited high sensitivity (7.7 kPa⁻¹) and fast response (37 ms) in flexible pressure sensing.
    • The films demonstrated efficient Joule heating with a high heating rate (1 °C s⁻¹) and long-term stability.

    Conclusions:

    • The LBGP process is a simple, low-cost, and efficient technique for large-scale graphene film preparation.
    • This method integrates synthesis, transfer, and patterning, paving the way for advancements in graphene electronics.
    • The developed process shows promise for both flexible pressure sensing and Joule heating applications.