Directed self-assembly of graphene oxide on an electrospun polymer fiber template. (December 2015)

• Record Type: Journal Article
• Authors: Vinod, T.P.; Yin, Xiuxiu; Jopp, Jürgen; Jelinek, Raz
• Is Part Of: Carbon. Volume 95(2015)
• Page Start: 888
• Page End: 894
• Publication Date: 2015-12
• Subjects: Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2015.09.021
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: Development of self-assembly routes for long-range organization of graphene oxide (GO) is an active field of research due to the enormous potential and diverse applications of this carbonaceous material. We present a simple strategy for producing anisotropic GO assemblies through utilizing electrospun polymer fibers as a physical template. We demonstrate that intertwined uniform electrospun microfibers comprising a mixture of polyethylenimine (PEI) and polyvinylpyrrolidone (PVP) constituted docking sites for GO flakes through electrostatic attraction between the negatively-charged GO and positive amine-displaying polymer fibers. The reduced GO (r-GO) network formed after chemical reduction exhibited electrical conductivity and optical transparency, opening the way for varied electro-optical applications.