Skoči na glavni sadržaj

Journal of Electrochemical Science and Engineering, Vol. 12 No. 4, 2022.

Izvorni znanstveni članak

https://doi.org/10.5599/jese.1411

Chemical vapor deposited graphene-based quasi-solid-state ultrathin and flexible sodium-ion supercapacitor

Mohammed Saquib Khan ; Materials Research Centre, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur, 302017, India
Preeti Shakya ; Materials Research Centre, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur, 302017, India
Nikita Bhardwaj ; Department of Physics, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur, 302017, India
Deependra Jhankal ; Department of Physics, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur, 302017, India
Atul Kumar Sharma ; Materials Research Centre, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur, 302017, India
Malay Kumar Banerjee ; Research Chair, SGVU, Jaipur,302017, India.
Kanupriya Sachdev ; Materials Research Centre, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur 302017, India and Department of Physics, Malaviya National Institute of Technology Jaipur, JLN Marg, Jaipur 30201, India

Puni tekst: engleski pdf 1.508 Kb

str. 799-813

preuzimanja: 194

citiraj

Sažetak

Flexible electronic devices find wide application in wearable electronics and foldable gadgets. This article reports chemical vapor deposited (CVD) few-layers graphene for a solid-state flexible supercapacitor device. Raman spectroscopy analysis reveals up to five layers in the graphene samples. Polyvinyl alcohol-Na2SO4 hydrogel membrane is used as a gel polymer electrolyte (GPE). 50 nm thick silver (Ag) deposited on polyethylene tere­phthalate (PET) through E-beam deposition served as the flexible current collector for the device. Galvanostatic charge-discharge (GCD) executed on the fabricated device to ana­lyze its electrochemical performance yielded a specific areal capacitance of 15.3 mF cm-2 at 0.05 mA cm-2 current density. The obtained power density of the fabricated device is 0.53 µWh cm-2 at a power density of 25 µW cm-2.

Ključne riječi

Gel polymer electrolyte; E-beam deposition; flexible electronics; light-weight supercapacitor; chemical vapor deposition; few-layer graphene

Hrčak ID:

283706

URI

https://hrcak.srce.hr/283706

Datum izdavanja:

18.9.2022.

Posjeta: 659 *