Temperature-insensitive stretchable conductors based on hierarchical double-layer graphene foams/PEDOT:PSS networks

Wu, Ying; Tang, Haijun; Wang, Lei; Zong, Yangyang; Jia, Jingjing; Sun, Lulu; Niu, Kangmin

doi:10.1016/j.compscitech.2023.110190

Cited by 10 publications

(2 citation statements)

References 44 publications

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“…The addition of electrically conductive graphene sheets into a polymer matrix is a common strategy to make the intrinsically insulating polymer conductive [ 189 ]. To achieve electrical conduction, sufficient connections among conductive fillers to form a percolated conductive network are necessary [ 190 ]. 3D printing offers a versatile and innovative approach to creating electrically conductive components, enabling the fabrication of conductive structures with customized geometries and intricate designs that are difficult to achieve using conventional manufacturing methods [ 64 , 191 , 192 ].…”

Section: Multifunctional Applications Of 3d Printed Graphene and Grap...mentioning

confidence: 99%

3D Printed Graphene and Graphene/Polymer Composites for Multifunctional Applications

Wu,

An,

Guo

2023

Materials

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Three-dimensional (3D) printing, alternatively known as additive manufacturing, is a transformative technology enabling precise, customized, and efficient manufacturing of components with complex structures. It revolutionizes traditional processes, allowing rapid prototyping, cost-effective production, and intricate designs. The 3D printed graphene-based materials combine graphene’s exceptional properties with additive manufacturing’s versatility, offering precise control over intricate structures with enhanced functionalities. To gain comprehensive insights into the development of 3D printed graphene and graphene/polymer composites, this review delves into their intricate fabrication methods, unique structural attributes, and multifaceted applications across various domains. Recent advances in printable materials, apparatus characteristics, and printed structures of typical 3D printing techniques for graphene and graphene/polymer composites are addressed, including extrusion methods (direct ink writing and fused deposition modeling), photopolymerization strategies (stereolithography and digital light processing) and powder-based techniques. Multifunctional applications in energy storage, physical sensor, stretchable conductor, electromagnetic interference shielding and wave absorption, as well as bio-applications are highlighted. Despite significant advancements in 3D printed graphene and its polymer composites, innovative studies are still necessary to fully unlock their inherent capabilities.

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Section: Multifunctional Applications Of 3d Printed Graphene and Grap...mentioning

confidence: 99%

3D Printed Graphene and Graphene/Polymer Composites for Multifunctional Applications

Wu,

An,

Guo

2023

Materials

Self Cite

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“…However, the synthesis of materials and technology has faced limitations when it came to producing an integrated single dispersion with the necessary electrical parameters and stability, leading to complicated deposition techniques and often insufficient thin layer coatings. Examples include graphene foams with a PEDOT:PSS network [ 16 ] and a 3D tubular graphene sponge with PEDOT:PSS [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Properties of PEDOT:PSS/Graphene Conductive Layers in Artificial Sweat

Tzaneva,

Aleksandrova,

Mateev

et al. 2023

Sensors

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Electrodes based on PEDOT:PSS are gaining increasing importance as conductive electrodes and functional layers in various sensors and biosensors due to their easy processing and biocompatibility. This study investigates PEDOT:PSS/graphene layers deposited via spray coating on flexible PET substrates. The layers are characterized in terms of their morphology, roughness (via AFM and SEM), and electrochemical properties in artificial sweat using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). The layers exhibit dominant capacitive behavior at low frequencies, with cut-off frequencies determined for thicker layers at 1 kHz. The equivalent circuit used to fit the EIS data reveals a resistance of about three orders of magnitude higher inside the layer compared to the charge transfer resistance at the solid/liquid interface. The capacitance values determined from the CV curves range from 54.3 to 122.0 mF m−2. After 500 CV cycles in a potential window of 1 V (from −0.3 to 0.7 V), capacitance retention for most layers is around 94%, with minimal surface changes being observed in the layers. The results suggest practical applications for PEDOT:PSS/graphene layers, both for high-frequency impedance measurements related to the functioning of individual organs and systems, such as impedance electrocardiography, impedance plethysmography, and respiratory monitoring, and as capacitive electrodes in the low-frequency range, realized as layered PEDOT:PSS/graphene conductive structures for biosignal recording.

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Electronic Skin for Health Monitoring Systems: Properties, Functions, and Applications

Yang,

Chen,

Fan

et al. 2024

Advanced Materials

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Electronic skin (e‐skin), a skin‐like wearable electronic device, holds great promise in the fields of telemedicine and personalized healthcare because of its good flexibility, biocompatibility, skin conformability, and sensing performance. E‐skin can monitor various health indicators of the human body in real time and over the long term, including physical indicators (exercise, respiration, blood pressure, etc.) and chemical indicators (saliva, sweat, urine, etc.). In recent years, the development of various materials, analysis, and manufacturing technologies has promoted significant development of e‐skin, laying the foundation for the application of next‐generation wearable medical technologies and devices. Herein, we discuss the properties required for e‐skin health monitoring devices to achieve long‐term and precise monitoring and summarize several detectable indicators in the health monitoring field. Subsequently, the applications of integrated e‐skin health monitoring systems are reviewed. Finally, current challenges and future development directions in this field are discussed. This review is expected to generate great interest and inspiration for the development and improvement of e‐skin and health monitoring systems.This article is protected by copyright. All rights reserved

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Temperature-insensitive stretchable conductors based on hierarchical double-layer graphene foams/PEDOT:PSS networks

Cited by 10 publications

References 44 publications

3D Printed Graphene and Graphene/Polymer Composites for Multifunctional Applications

3D Printed Graphene and Graphene/Polymer Composites for Multifunctional Applications

Electrochemical Properties of PEDOT:PSS/Graphene Conductive Layers in Artificial Sweat

Electronic Skin for Health Monitoring Systems: Properties, Functions, and Applications

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