title: Grafoil-Scotch tape-derived highly conducting flexible substrate and its application as a supercapacitor electrode.
abstract: Development of flexible supercapacitors is limited by the availability of flexible and durable conducting substrates; a conducting and cheap substrate for the active material deposition is essential for breakthrough progress in this direction. In this report, a highly flexible, conducting, and cheap substrate is prepared by simple stick and peel-off method involving Scotch tape and Grafoil. A Grafoil-Scotch tape derived flexible substrate exhibits a sheet resistance of 7 Ω □-1along with a high degree of flexibility and durability. Moreover, its properties are further enhanced by the anodization in order to increase the hydrophilicity and surface area. The substrate is highly thin with a thickness of just 74 μm. Its practical utility has been demonstrated by electrodepositing MnO2as an active material and, thereafter, fabricating a solid-state flexible supercapacitor. The fabricated device exhibits high capacitance retention under bent (99%) and twisted (98%) conditions along with a low ESR of 7 Ω.
authors.affiliation: Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra-411008, India. k.sreekumar@ncl.res.in and Academy of Scientific and Innovative Research (AcSIR), CSIR-National Chemical Laboratory Campus, Pune, Maharashtra-411008, India.
authors.forename: Roby
authors.initials: R
authors.lastname: Soni
authors.affiliation: Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra-411008, India. k.sreekumar@ncl.res.in.
authors.forename: Alka
authors.initials: A
authors.lastname: Raveendran
authors.affiliation: Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, Maharashtra-411008, India. k.sreekumar@ncl.res.in and Academy of Scientific and Innovative Research (AcSIR), CSIR-National Chemical Laboratory Campus, Pune, Maharashtra-411008, India.
authors.forename: Sreekumar
authors.initials: S
authors.lastname: Kurungot