Grafoil–Scotch tape-derived highly conducting flexible substrate and its application as a supercapacitor electrode. Issue 10 (1st March 2017)

• Record Type: Journal Article
• Authors: Soni, Roby; Raveendran, Alka; Kurungot, Sreekumar
• Is Part Of: Nanoscale. Volume 9:Issue 10(2017)
• Page Start: 3593
• Page End: 3600
• Publication Date: 2017-03-01
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c7nr00281e
• Languages: English
• ISSNs: 2040-3364

Abstract

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. 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 □ −1 along 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 MnO2 as 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.