Abstract
In this study, graphene-based supercapacitors with optical transparency and mechanical flexibility have been achieved using a combination of poly(vinyl alcohol)/phosphoric acid gel electrolyte and graphene electrodes. An optical transmittance of ∼67% in a wavelength range of 500-800 nm and a 92.4% remnant capacitance under a bending angle of 80° have been achieved for the supercapacitors. The decrease in capacitance under bending is ascribed to the buckling of the graphene electrode in compression. The supercapacitors with high optical transparency, electrochemical stability, and mechanical flexibility hold promises for transparent and flexible electronics.
Highlights
Follow this and additional works at: https://digitalcommons.unl.edu/electricalengineeringfacpub Part of the Computer Engineering Commons, and the Electrical and Computer Engineering
Electrical & Computer Engineering, Department of Transparent, flexible, and solid-state supercapacitors based on graphene electrodes
F., "Transparent, flexible, and solid-state supercapacitors based on graphene electrodes" (2013)
Summary
Follow this and additional works at: https://digitalcommons.unl.edu/electricalengineeringfacpub Part of the Computer Engineering Commons, and the Electrical and Computer Engineering. Electrical & Computer Engineering, Department of Transparent, flexible, and solid-state supercapacitors based on graphene electrodes J.; Mahjouri-samani, M.; Thirugnanam, P.; Huang, X.; Wang, M.
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