Development of Light-Scribing Process Using L-Ascorbic Acid for Graphene Micro-Supercapacitor

The rapid development of smart technologies is accelerating the growing demand for microscale energy storage devices. This work reports a facile and practical approach to fabricating interdigitated graphene micro-patterns through the LSC process accompanied by the l-ascorbic acid (L-AA) and preheati...

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Bibliographic Details
Published in:Micromachines (Basel) 2024-06, Vol.15 (7), p.858
Main Authors: Park, Seorin, Lee, Da Young, Cho, Sunghun
Format: Article
Language:English
Subjects:
Ascorbic acid
Cellulose acetate
Electrodes
Electrolytes
Energy storage
Graphene
Graphite
Heating
l-ascorbic acid
light-scribing
micro-patterning
micro-supercapacitor
Polyvinyl alcohol
Potassium
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Summary:The rapid development of smart technologies is accelerating the growing demand for microscale energy storage devices. This work reports a facile and practical approach to fabricating interdigitated graphene micro-patterns through the LSC process accompanied by the l-ascorbic acid (L-AA) and preheating treatment. Our work offered a higher degree of GO reduction than the conventional microfabrication. It significantly shortened the overall processing time to obtain the micro-patterns with improved electrical and electrochemical performances. The interdigitated MSC composed of 16 electrodes exhibited a high capacitance of 14.1 F/cm , energy density of 1.78 mWh/cm , and power density of 69.9 mW/cm . Furthermore, the fabricated MSC device demonstrated excellent cycling stability of 88.2% after 10,000 GCD cycles and a high rate capability of 81.1% at a current density of 1.00 A/cm . The fabrication process provides an effective means for producing high-performance MSCs for miniaturized electronic devices.
ISSN:2072-666X
2072-666X
DOI:10.3390/mi15070858