The influence of copper substrate temperature on the wettability of graphene coating

IF 2.7 4区材料科学 Q3 CHEMISTRY, PHYSICAL

Surface Innovations Pub Date : 2022-05-11 DOI:10.1680/jsuin.22.00021

S. Misyura, V. Andryushchenko, V. Morozov

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引用次数: 6

Abstract

The influence of the parameters of copper substrate on the wettability at different temperatures was studied experimentally and theoretically. It is known that water condensation on graphene leads to a change in the electrical properties and affects the graphene sensor sensitivity. To date, there is no data on the effect of temperature on surface properties of graphene synthesized on copper. It is shown for the first time that a change in the crystal orientation of copper (111), (110) and (100) leads to different structuring of water on copper and on graphene layer. An increase in temperature alters the density of water distribution and the pattern of water structuring. The analysis of the influence of grain boundaries on graphene synthesis is given. A change in the size of defects is shown to alter the qualitative nature of roughness for copper and graphene. Various methods of roughness processing allow us to explain the inconsistency of existing works comparing the roughness of the metal and graphene coating. The roughness measurement serves to prove our previously proposed hypothesis about the local stratification of graphene and copper due to large surface defects. The results obtained are important for the development of graphene-based sensor technologies.

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铜衬底温度对石墨烯涂层润湿性的影响

从实验和理论上研究了不同温度下铜基体参数对润湿性的影响。众所周知，石墨烯上的水凝结会导致电性能的变化，并影响石墨烯传感器的灵敏度。到目前为止，还没有关于温度对在铜上合成的石墨烯表面性质的影响的数据。首次表明，铜（111）、（110）和（100）的晶体取向的变化导致水在铜和石墨烯层上的不同结构。温度的升高改变了水分布的密度和水结构的模式。分析了晶界对石墨烯合成的影响。缺陷尺寸的变化改变了铜和石墨烯粗糙度的定性性质。各种粗糙度处理方法使我们能够解释现有工作中比较金属和石墨烯涂层粗糙度的不一致性。粗糙度测量用于证明我们之前提出的关于石墨烯和铜由于大的表面缺陷而局部分层的假设。所获得的结果对基于石墨烯的传感器技术的发展具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Surface Innovations CHEMISTRY, PHYSICALMATERIALS SCIENCE, COAT-MATERIALS SCIENCE, COATINGS & FILMS

CiteScore

5.80

自引率

22.90%

发文量

期刊介绍： The material innovations on surfaces, combined with understanding and manipulation of physics and chemistry of functional surfaces and coatings, have exploded in the past decade at an incredibly rapid pace. Superhydrophobicity, superhydrophlicity, self-cleaning, self-healing, anti-fouling, anti-bacterial, etc., have become important fundamental topics of surface science research community driven by curiosity of physics, chemistry, and biology of interaction phenomenon at surfaces and their enormous potential in practical applications. Materials having controlled-functionality surfaces and coatings are important to the manufacturing of new products for environmental control, liquid manipulation, nanotechnological advances, biomedical engineering, pharmacy, biotechnology, and many others, and are part of the most promising technological innovations of the twenty-first century.