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Laser-Patternable Graphene Field Emitters for Plasma Displays.

Kamatchi Jothiramalingam Sankaran1,2, Santosh Kumar Bikkarolla3, Derese Desta4,5

  • 1Institute for Materials Research (IMO), Hasselt University, 3590 Diepenbeek, Belgium. sankaran.kamatchi@uhasselt.be.

Nanomaterials (Basel, Switzerland)
|October 23, 2019
PubMed
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This study introduces a plasma display device using laser-induced graphene nanoribbons (LIGNs). These LIGNs offer excellent field electron emission and stable plasma illumination, advancing display technology.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Plasma Physics

Background:

  • Traditional plasma display devices (PDDs) face challenges in cathode stability and fabrication complexity.
  • Field electron emission (FEE) is crucial for PDD performance, requiring materials with high emission efficiency.

Purpose of the Study:

  • To develop a novel PDD utilizing laser-induced graphene nanoribbons (LIGNs) as the cathode material.
  • To investigate the field electron emission and plasma illumination characteristics of LIGN-based PDDs.

Main Methods:

  • Direct fabrication of LIGNs on polyimide sheets using a laser-based method.
  • Characterization of LIGNs for field electron emission properties, including turn-on field and field enhancement factor.
  • Integration of LIGNs as cathodes in PDDs to evaluate plasma illumination performance and stability.
Keywords:
field electron emissionlaser-induced grapheneplasma illuminationpolyimide

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Main Results:

  • Achieved superior field electron emission characteristics with a low turn-on field (0.44 V/μm) and a high field enhancement factor (4578).
  • Demonstrated excellent plasma illumination with prolonged stability when using LIGN cathodes in PDDs.
  • Confirmed the direct laser-patternability of LIGN cathodes, simplifying fabrication.

Conclusions:

  • LIGNs exhibit exceptional FEE properties suitable for advanced display applications.
  • LIGN-based PDDs offer enhanced plasma illumination stability and performance.
  • The direct laser-patterning capability of LIGNs presents a significant advantage for future display technology development.