Inkjet Printed Multifunctional Graphene Sensors for Flexible and Wearable Electronics

IF 5.3 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Advanced Electronic Materials Pub Date : 2024-12-16 DOI:10.1002/aelm.202400689

Feiran Wang, Charles E. D. Heaton, Nathan D. Cottam, Jonathan S. Austin, Jisun Im, T. Mark Fromhold, Ricky D. Wildman, Richard J. M. Hague, Christopher J. Tuck, Oleg Makarovsky, Lyudmila Turyanska

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Abstract

The exceptional electrical properties of graphene with high sensitivity to external stimuli make it an ideal candidate for advanced sensing technologies. Inkjet printing of graphene (iGr) can provide a versatile platform for multifunctional sensor manufacturing. Here the multifunctional sensor enabled by combining the design freedom of inkjet printing with the unique properties of graphene networks is reported on. A fully inkjet printed multimaterial device consists of two layers of iGr stripes separated by a dielectric polymeric layer of tripropylene glycol diacrylate (TPGDA). In these devices, the bottom iGr layer, capped with TPGDA, provides temperature sensing, the top uncapped iGr is sensitive to the external atmosphere, while the capacitance between the two iGr layers is sensitive to the applied pressure. The fast, sensitive, and reproducible performance of these sensors are demonstrated in response to environmental stimuli, such as pressure, temperature, humidity, and magnetic field. The devices are capable of simultaneous sensing of multiple factors and are successfully manufactured on a variety of substrates, including Si/SiO₂, flexible Kapton films and textiles, demonstrating their potential impact in applications compatible with silicon technologies as well as wearable and healthcare devices.

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石墨烯具有优异的电学特性，对外界刺激具有高灵敏度，是先进传感技术的理想候选材料。石墨烯喷墨打印（iGr）可为多功能传感器制造提供一个多功能平台。在此，我们报告了将喷墨打印的设计自由度与石墨烯网络的独特性能相结合而实现的多功能传感器。完全喷墨打印的多材料器件由两层 iGr 条纹组成，中间由三丙二醇二丙烯酸酯（TPGDA）介电聚合物层隔开。在这些器件中，底部的 iGr 层用 TPGDA 封盖，提供温度传感，顶部未封盖的 iGr 对外部大气敏感，而两层 iGr 之间的电容对施加的压力敏感。在对压力、温度、湿度和磁场等环境刺激做出响应时，这些传感器的快速、灵敏和可重现性能得到了验证。这些器件能够同时感应多种因素，并能在包括硅/二氧化硅、柔性卡普顿薄膜和纺织品在内的多种基底上成功制造，证明了它们在与硅技术兼容的应用以及可穿戴设备和医疗保健设备中的潜在影响。

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来源期刊

Advanced Electronic Materials NANOSCIENCE & NANOTECHNOLOGYMATERIALS SCIE-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

11.00

自引率

3.20%

发文量

433

期刊介绍： Advanced Electronic Materials is an interdisciplinary forum for peer-reviewed, high-quality, high-impact research in the fields of materials science, physics, and engineering of electronic and magnetic materials. It includes research on physics and physical properties of electronic and magnetic materials, spintronics, electronics, device physics and engineering, micro- and nano-electromechanical systems, and organic electronics, in addition to fundamental research.