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Fluorinated graphene suspension for inkjet printed technologies
N A Nebogatikova1, I V Antonova, I I Kurkina
1Rzhanov Institute of Semiconductor Physics SB RAS, 630090, Novosibirsk, 13, Acad. Lavrentyev Avenue, Russia.
Nanotechnology
|April 5, 2016
Summary
Researchers controlled fluorinated graphene flake size by adjusting fluorination conditions. Mechanical stress from lattice corrugation drives fragmentation, enabling applications in 2D printing and nanoelectronics.
Area of Science:
- Materials Science
- Nanotechnology
- Chemical Engineering
Background:
- Graphene's unique properties are attractive for advanced applications.
- Controlling graphene flake size is crucial for material processing and performance.
- Fluorination is a method to modify graphene's properties.
Purpose of the Study:
- To demonstrate control over fluorinated graphene flake size during aqueous hydrofluoric acid treatment.
- To investigate factors influencing graphene flake fragmentation during fluorination.
- To explore the potential of nano-sized fluorinated graphene for electronic applications.
Main Methods:
- Fluorination of graphene suspension in hydrofluoric acid.
- Investigation of suspension composition, fluorination time, temperature, and thermal stress effects.
- Analysis of flake fragmentation and corrugation using mechanical stress principles.
Main Results:
- Demonstrated control over fluorinated graphene flake size.
- Identified corrugation-induced mechanical stress as the driving force for fragmentation.
- Observed accelerated fragmentation at elevated temperatures (around 70 °C).
- Fabricated nano-sized fluorinated graphene suspensions suitable for 2D printing.
Conclusions:
- Fluorination-induced corrugation and resulting mechanical stress control graphene flake size.
- Nano-sized fluorinated graphene is promising for 2D ink-jet printing and dielectric films.
- Printed films exhibit excellent dielectric properties with ultra-low charge densities in metal-insulator-semiconductor structures.
