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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
Summary
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.
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.
