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Polydimethylsiloxane–graphene oxide composite improving performance by ion beam irradiation
Surface and Interface Analysis ( IF 1.6 ) Pub Date : 2020-10-11 , DOI: 10.1002/sia.6882
Mariapompea Cutroneo 1 , Vladimír Havránek 1 , Alfio Torrisi 1 , Anna Mackova 1, 2 , Petr Malinsky 1, 2 , Petr Slepicka 3 , Zdenek Sofer 4 , Lorenzo Torrisi 5, 6
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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.

中文翻译:

聚二甲基硅氧烷-氧化石墨烯复合物通过离子束辐照改善性能

经由旋涂机制备由覆盖有聚(二甲基硅氧烷)的氧化石墨烯组成的杂化膜,然后进行热退火以提高聚合体系的结合强度。通过离子微束在氧化石墨烯和混合氧化石墨烯-聚(二甲基硅氧烷)箔上直接图案化,以诱导离子辐照材料的局部还原。众所周知,氧化石墨烯的离子辐照会引起其电,机械和光学性能的改变,以及碳晶体结构和缺陷产生的无序性。聚(二甲基硅氧烷)的存在是有用的,因为它赋予所产生的图案以灵活性和从氧化石墨烯表面的透氧性。进行了卢瑟福背散射光谱和弹性反冲检测分析,以评估复合材料的成分变化。原子力显微镜研究了图案的保真度。杂化材料的电导率用于评估在质子辐照材料过程中引起的变化。
更新日期:2020-11-13
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