Conductive graphene-based coagulated composites for electronic printing applications

IF 3.1 Q2 MATERIALS SCIENCE, COMPOSITES
Manoj Aravind Sankar and Prasanna R
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引用次数: 0

Abstract

Graphene is gaining significance in applications such as sensors, antennas, photonics and spintronics. In particular, it is suitable for printing components and circuits affording the properties of high conductivity alongside flexibility, elasticity and wearability. For this application, graphene is typically customised into a fluidic form—ink or paint. This paper reports a novel, economical, scalable methodology for synthesising electrically conductive graphene-based coagulated composite that could be utilised in the above-mentioned applications. Composites are prepared from graphene powder/ink and screen-printing ink (GP–SPI and GI–SPI, respectively) at different mass ratios, and the optimal composition is identified by brush coating on paper in the form of rectangular strips. As a proof of concept, at optimum mass ratios, the GP–SPI and GI–SPI composites exhibit electrical conductivities ranging 0.068–0.702 mS m−1 and 0.0303–0.1746 μS m−1, in order. The as-prepared conductive composites are then screen-printed onto a square with an area of 1 cm2 on ceramic, FR4, glass, paper, polyester and wood substrates. The coagulated GP–SPI and GI–SPI composites are compatible with all these substrates and yield a conductive coating, demonstrating their suitability in multifaceted applications. Furthermore, the method proposed herein eliminates the need for rare/precious expensive materials, state-of-the art equipment, highly skilled personnel and costs associated with the same, thereby broadening the avenues for low-cost, fluidic graphene-based functional composites.
基于石墨烯的导电凝固复合材料在电子印刷中的应用
石墨烯在传感器、天线、光子学和自旋电子学等领域的应用日益重要。石墨烯尤其适用于打印元件和电路,不仅具有高导电性,还具有柔韧性、弹性和耐磨性。在这种应用中,石墨烯通常被定制成流体形式--墨水或涂料。本文报告了一种新颖、经济、可扩展的方法,用于合成可用于上述应用的基于石墨烯的导电凝固复合材料。复合材料由不同质量比的石墨烯粉末/墨水和丝网印刷墨水(分别为 GP-SPI 和 GI-SPI)制备而成,并通过在纸上刷涂矩形条来确定最佳成分。作为概念验证,在最佳质量比下,GP-SPI 和 GI-SPI 复合材料的导电率依次为 0.068-0.702 mS m-1 和 0.0303-0.1746 μS m-1。然后将制备好的导电复合材料丝网印刷到陶瓷、FR4、玻璃、纸张、聚酯和木材基底上面积为 1 cm2 的正方形上。凝固的 GP-SPI 和 GI-SPI 复合材料与所有这些基底都兼容,并产生了导电涂层,这表明它们适用于多方面的应用。此外,本文提出的方法无需使用稀有/贵重材料、先进设备、高技能人才和相关成本,从而拓宽了低成本、流体石墨烯基功能复合材料的应用途径。
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
Functional Composites and Structures
Functional Composites and Structures Materials Science-Materials Science (miscellaneous)
CiteScore
4.80
自引率
10.70%
发文量
33
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