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Thiophenol‐Modified Fluorographene Derivatives for Nonlinear Optical Applications
Author(s) -
Stathis Aristeidis,
Papadakis Ioannis,
Karampitsos Nikolaos,
Couris Stelios,
Potsi Georgia,
Bourlinos Athanasios B.,
Otyepka Michal,
Zboril Radek
Publication year - 2019
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201800643
Subject(s) - thiophenol , raman spectroscopy , fullerene , spectroscopy , x ray photoelectron spectroscopy , materials science , photochemistry , chemistry , graphene , analytical chemistry (journal) , nanotechnology , organic chemistry , chemical engineering , optics , physics , quantum mechanics , engineering
The synthesis and characterization of two thiophenol‐modified fluorographene derivatives, namely methoxythiophenol‐and dimethylaminothiophenol‐modified fluorographenes, are reported, while their third‐order nonlinear optical response were thoroughly investigated under both visible (532 nm) and infrared (1064 nm) with 35 ps and 4 ns laser pulses. The graphene derivatives were obtained by partial nucleophilic substitution/reduction of fluorographene by the corresponding organic thiophenols, and were fully characterized by techniques including infrared/Raman spectroscopy, X‐ray photoelectron spectroscopy, atomic force spectroscopy, and high‐resolution transmission microscopy. This type of modification resulted in graphenic structures where the attached thiol groups, sp 2 domains, and the residual fluorine groups act as donors, π bridges, and acceptors, respectively. Both derivatives exhibited large nonlinear optical response compared to fluorographene, and have potential applications in optical limiting as an alternative to fullerenes.