Graphene nanosheets: Mechanisms for large-area thin films production. (1st April 2016)

• Record Type: Journal Article
• Authors: Mylvaganam, Kausala; Zhang, Liangchi
• Is Part Of: Scripta materialia. Volume 115(2016)
• Page Start: 145
• Page End: 149
• Publication Date: 2016-04-01
• Subjects: Graphene -- Ionic functionalization -- Large-area -- Thin film -- DFT; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2016.01.001
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Large scale manufacture of graphene nanosheets (GNS) is one of the greatest challenges. The longitudinal unzipping of carbon nanotubes has created the possibility of large scale production with well-controlled widths. However, this mechanism can only produce ribbons of graphene (GNR). In this work, we have explored new mechanisms and approach for efficiently producing large-area GNS thin films. We show that the GNR/GNS can be functionalized by anion/cation initiators. The resulting negatively and positively charged functionalized GNR/GNS can form large-area thin films through side-by-side and layer-by-layer electrostatic attractions. These findings provide a solid theoretical basis for producing large-area thin films. Graphical abstract: