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Polydimethylsiloxane–graphene oxide composite improving performance by ion beam irradiation
Author(s) -
Cutroneo Mariapompea,
Havránek Vladimír,
Torrisi Alfio,
Mackova Anna,
Malinsky Petr,
Slepicka Petr,
Sofer Zdenek,
Torrisi Lorenzo
Publication year - 2020
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6882
Subject(s) - graphene , materials science , oxide , elastic recoil detection , irradiation , graphene oxide paper , ion beam , microbeam , polydimethylsiloxane , ion , composite material , nanotechnology , thin film , optics , chemistry , physics , organic chemistry , nuclear physics , metallurgy
A hybrid film consisting of graphene oxide covered with poly(dimethylsiloxane) was prepared via spin coater and followed by thermal annealing to improve the bond strength of the polymerized systems. Direct patterning on both graphene oxide and hybrid graphene oxide–poly(dimethylsiloxane) foils by ion microbeam was performed to induce localized reduction in the ion irradiated material. It is well established that the ion irradiation of graphene oxide induces modifications in its electrical, mechanical, and optical properties and disorder in the carbon crystal structure and defect production. The presence of poly(dimethylsiloxane) can be useful as it confers flexibility to the produced pattern and oxygen permeability from the graphene oxide surface. Rutherford backscattered spectroscopy and elastic recoil detection analysis were performed to evaluate the compositional changes in the composite. Atomic force microscopy studied the pattern fidelity. The electrical conductivity of the hybrid material was used to evaluate the changes induced during the proton irradiation of the material.