Viscosity-Controllable Graphene Oxide Colloids Using Electrophoretically Deposited Graphene Oxide Sheets

Graphene oxide (GO) is one of the interesting ink materials owing to its fascinating properties, such as high dissolubility in water and high controllable electric properties. For versatile printing application, the viscosity of GO colloids should be controlled in order to meet the specific process...

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Bibliographic Details
Published in:Micromachines (Basel) 2022-12, Vol.13 (12), p.2157
Main Authors: Choi, Jinseok, Park, Seong-Gyu, Choi, Yeo-Jin, Baek, Seung-Mun, Kim, Han-Jung, Kim, Yoonkap, Im, Ki-Sik, An, Sung-Jin
Format: Article
Language:English
Subjects:
Additives
Analyzers
Chemicals
Colloiding
Commercial printing industry
Controllability
Electric fields
Electric properties
Electrodes
electrophoretic deposition
Fourier transforms
Glass substrates
Graphene
graphene oxide
graphene oxide ink
graphene oxide viscosity
Graphite
Inks
Permeability
Printing industry
Screen printing
Sheets
Spectrum analysis
Viscosity
viscosity increase
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Summary:Graphene oxide (GO) is one of the interesting ink materials owing to its fascinating properties, such as high dissolubility in water and high controllable electric properties. For versatile printing application, the viscosity of GO colloids should be controlled in order to meet the specific process requirements. Here, we report on the relatively rapid fabrication of viscosity-increased GO (VIGO) colloids mixed with electrophoretically deposited GO sheets (EPD-GO). As the GO colloid concentration, applied voltage, and deposition time increase, the viscosity of the GO colloids becomes high. The reason for the improved viscosity of GO colloids is because EPD-GO has parallel stacked GO sheets. The GO and VIGO colloids are compared and characterized using various chemical and structural analyzers. Consequently, our simple and fast method for the fabrication of GO colloids with enhanced viscosity can be used for producing inks for flexible and printed electronics.
ISSN:2072-666X
2072-666X
DOI:10.3390/mi13122157