Probing plasma fluorinated graphene via spectromicroscopy. Issue 46 (20th November 2017)

• Record Type: Journal Article
• Authors: Struzzi, C.; Scardamaglia, M.; Reckinger, N.; Sezen, H.; Amati, M.; Gregoratti, L.; Colomer, J.-F.; Ewels, C.; Snyders, R.; Bittencourt, C.
• Is Part Of: Physical chemistry chemical physics. Volume 19:Issue 46(2017)
• Page Start: 31418
• Page End: 31428
• Publication Date: 2017-11-20
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c7cp05305c
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : The graphene fluorination using CF4 and SF6 plasma is investigated by combining spectroscopy and microscopy techniques. Abstract : Plasma fluorination of graphene is studied using a combination of spectroscopy and microscopy techniques, giving insight into the yield and fluorination mechanism for functionalization of supported graphene with both CF4 and SF6 gas precursors. Ion acceleration during fluorination is used to probe the effect on grafting functionalities. Adatom clustering, which occurs with CF4 plasma treatment, is suppressed when higher kinetic energy is supplied to the ions. During SF6 plasma functionalization, the sulfur atoms tend to bond to bare copper areas instead of affecting the graphene chemistry, except when the kinetic energy of the ions is restricted. Using scanning photoelectron microscopy, with a 100 nm spatial resolution, the chemical bonding environment is evaluated in the fluorinated carbon network at selected regions and the functionalization homogeneity is controlled in individual graphene flakes.