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Surfactant-assisted water-based graphene conductive inks for flexible electronic applications
Journal of the Taiwan Institute of Chemical Engineers ( IF 5.7 ) Pub Date : 2021-06-27 , DOI: 10.1016/j.jtice.2021.06.022
Y.Z.N. Htwe , M. Mariatti

Background

Inkjet printing of graphene conductive inks plays a critical role in the technological advancement in flexible and stretchable electronics applications. In this study, water-based graphene conductive ink was fabricated and printed through inkjet printing on polyethylene terephthalate substrate.

Methods

Deionized (DI) water and three different types of surfactants (sodium dodecyl sulfate (SDS), polyvinylpyrrolidone (PVP), and Gum Arabic GA)) were utilized in the preparation of graphene conductive inks.

Significant Finding

Among other conductive ink formulations, graphene conductive inks fabricated using the DI/PVP surfactant exhibit relatively higher wetting and stability properties. In addition, this formulation led to an increment of about 80% in electrical conductivity compared to DI water-based conductive ink. The results revealed an improvement of about 50 times in the electrical conductivity of the printed film when the number of the printing cycle was increased from 1 to 10. Furthermore, it was observed that under 50% tensile strain, the graphene film prepared using the PVP surfactant exhibited only a 0.12% drop in electrical conductivity. Therefore, it is inferred that the conductive inks prepared from DI/PVP surfactants are highly suitable for use in flexible and wearable electronics.



中文翻译:

用于柔性电子应用的表面活性剂辅助水性石墨烯导电油墨

背景

石墨烯导电油墨的喷墨印刷在柔​​性和可拉伸电子应用的技术进步中起着至关重要的作用。在这项研究中,水性石墨烯导电油墨被制造并通过喷墨印刷在聚对苯二甲酸乙二醇酯基材上进行印刷。

方法

去离子 (DI) 水和三种不同类型的表面活性剂(十二烷基硫酸钠 (SDS)、聚乙烯吡咯烷酮 (PVP) 和阿拉伯胶 GA))用于制备石墨烯导电油墨。

重要发现

在其他导电油墨配方中,使用 DI/PVP 表面活性剂制造的石墨烯导电油墨表现出相对较高的润湿性和稳定性。此外,与 DI 水性导电油墨相比,该配方使导电性增加了约 80%。结果表明,当印刷周期数从 1 增加到 10 时,印刷薄膜的导电性提高了约 50 倍。此外,观察到在 50% 拉伸应变下,使用 PVP 制备的石墨烯薄膜表面活性剂的电导率仅下降 0.12%。因此,推测由 DI/PVP 表面活性剂制备的导电油墨非常适用于柔性和可穿戴电子产品。

更新日期:2021-08-03
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