A high-performance current collector-free flexible in-plane micro-supercapacitor based on a highly conductive reduced graphene oxide film. Issue 41 (6th October 2016)

• Record Type: Journal Article
• Authors: Wu, Mingmao; Li, Yingru; Yao, Bowen; Chen, Ji; Li, Chun; Shi, Gaoquan
• Is Part Of: Journal of materials chemistry. Volume 4:Issue 41(2016)
• Page Start: 16213
• Page End: 16218
• Publication Date: 2016-10-06
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c6ta06846d
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : A flexible in-plane micro-supercapacitor fabricated by laser carving a highly conductive reduced graphene oxide film and electrochemical activation exhibits high areal specific capacitance and excellent cycling stability. Abstract : A flexible in-plane micro-supercapacitor (MSC) was fabricated by laser carving a highly conductive and mechanically robust reduced graphene oxide (rGO) film adhered to a polyethylene naphthalate (PEN) sheet, followed by electrochemical activation of its microelectrodes. The laser carved rGO film can readily produce rGO interdigital micropatterns on a flexible PEN substrate, whereas electrochemical post-treatment can efficiently exfoliate the highly stacked rGO microelectrodes into a porous three-dimensional interconnected porous microstructure, greatly enhancing the accessible surface area for the formation of electrical double layers. The resultant metal current collector-free, flexible in-plane MSC exhibited a high areal specific capacitance, superior rate capability, excellent cycling stability as well as outstanding flexibility.