Laser-induced graphene and its modification with polypyrrole for increasing microsupercapacitor capacitance
نویسندگان
چکیده
Laser-induced graphene (LIG) films were synthesized by line-by-line scanning of cw CO 2 laser focused radiation on the surface industrial polyimide film as a result pyrolysis its near-surface layer. The structure material is shown to be heterogeneous in thickness Raman spectroscopy. results study effect power and distance between lines specific electrical capacitance c aqueous solution sulfuric acid are presented. It that modification LIG with polypyrrole (PPy) allows increase up 60 mF/cm . PPy-modified used make prototype flexible microsupercapacitor an area 8 cm , using gel electrolyte based polyvinyl alcohol, 230 mF capacitance. Keywords: laser-induced graphene, electric capacitance, polypyrrole, microsupercapacitor.
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ژورنال
عنوان ژورنال: Fizika tverdogo tela
سال: 2023
ISSN: ['0367-3294', '1726-7498']
DOI: https://doi.org/10.21883/pss.2023.02.55422.529