Fabrication of high performance printed flexible conductors by doping of polyaniline nanomaterials into silver paste

Wen, Jiayue; Tian, Yanhong; Hao, Changxiang; Wang, Shang; Mei, Zhipeng; Wu, Wentao; Lu, Junyi; Zheng, Zhen; Tian, Yanqing

doi:10.1039/c8tc05391j

Cited by 37 publications

(22 citation statements)

References 50 publications

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“…For the conduction mechanism, the addition of conductive PANIs nanomaterials is equivalent to providing more contact points for conductive composites. In our previous research [38,43], we found that there was a strong interaction between PANIs and silver flakes, which could alter the distribution of the silver flakes in the resins and enhance the tunneling state between them.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Novel Printable Electrically Conductive Adhesives (ECAs) with Excellent Conductivity and Stability Enhanced by the Addition of Polyaniline Nanoparticles

et al. 2019

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Electrically conductive adhesives (ECAs) are one of the low temperature bonding materials. It can be used to replace toxic Sn-Pb solder. The key issue for the application of ECAs is how to improve their electrical properties. In the present study, we develop an effective method to promote the electrical properties of ECAs by addition of polyaniline (PANI) nanoparticles. PANIs were synthesized via a facile one-step chemical oxidative polymerization method. After adding 0.5 wt% PANI nanoparticles, the conductivity of ECAs increased dramatically by an order of magnitude. The bulk resistivity of 8.8 × 10−5 Ω·cm is achieved for 65 wt% silver fillers with 0.5 wt% PANIs loaded ECAs. Besides, this improvement has no negative effect on the shear strength and the aging life of ECAs. Moreover, the use of PANIs not only lowers the percolation threshold of ECAs, but also reduces the cost and improves the bonding reliability. Finally, PANIs enhanced ECAs patterns were successfully printed by a stencil printing method, which proved their potential applications in replacing conventional solder pastes and printing functional circuits.

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Section: Resultsmentioning

confidence: 99%

Fabrication of Novel Printable Electrically Conductive Adhesives (ECAs) with Excellent Conductivity and Stability Enhanced by the Addition of Polyaniline Nanoparticles

et al. 2019

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“…[100] In general, there have two types to control organicinorganic interface: surface functionalization [101][102][103][104][105][106][107][108][109][110] and addition of additives. [109][110][111][112][113] Surface functionalization of inorganic materials with organic molecules has been well-developed in the solution-based synthesis of nanostructured inorganic materials, including thiol chemistry on metal surfaces, [101] silane chemistry on oxide surfaces, [102] creating functional groups on metals and oxides by plasma exposure and ozone treatment, [103,104] radical formation and subsequent surface adsorption, [105][106][107] coating with charged small molecules, [108] surface wrapping or adsorption by long polymer chains, [114] etc. Due to the poor miscibility of the nanomaterials with the polymer matrix or the polymer solution, design of the functional groups on the nanomaterial surface has been focused on increasing the compatibility with the polymer.…”

Section: Electrospun Nanofiber Interfacesmentioning

confidence: 99%

“…Various interfacial designs to increase the stretchability of the Ag flake composites have been reported. [110][111][112][113][114]119,120] Jin et al fabricated Ag flake composite embedding electrospun poly(vinylidene fluoride) (PVDF) nanofibers (Figure 10a). [114] The pores with average size of 2.9 µm among the nanofibers were filled with the Ag-rich conductive composite, resulting in high electrical conductivity of 9900 S cm −1 .…”

Section: Metal Interfaces For Conductive Stretchable Compositesmentioning

confidence: 99%

Interface Design for Stretchable Electronic Devices

2021

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Stretchable electronics has emerged over the past decade and is now expected to bring form factor-free innovation in the next-generation electronic devices. Stretchable devices have evolved with the synthesis of new soft materials and new device architectures that require significant deformability while maintaining the high device performance of the conventional rigid devices. As the mismatch in the mechanical stiffness between materials, layers, and device units is the major challenge for stretchable electronics, interface control in varying scales determines the device characteristics and the level of stretchability. This article reviews the recent advances in interface control for stretchable electronic devices. It summarizes the design principles and covers the representative approaches for solving the technological issues related to interfaces at different scales: i) nano-and microscale interfaces between materials, ii) mesoscale interfaces between layers or microstructures, and iii) macroscale interfaces between unit devices, substrates, or electrical connections. The last section discusses the current issues and future challenges of the interfaces for stretchable devices.

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“…In order to fulfill these aims, we propose a hybrid approach for e-fabric skin by combining screen printing and heat transfer techniques. The design of the e-fabric-like skin is based on the structure of multi-line capacitors with two main layers, which are composed of SWCNT/stretchable silver paste [27][28][29][30][31][32] as electrode layers and special-structure fabrics as a dielectric layer. The resulting e-fabric-skin has high flexibility, is breathable, lightweight, and has easy integration into clothing.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Sensing of Touch and Pressure by Using Highly Elastic e-Fabrics

Kim

2020

Applied Sciences

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In recent years, electronic skins have been widely studied for human monitoring systems. This research field needs multi-sensing points for large deformation, strong recovery, and mass production methods. Toward these aims, the fabrication of e-fabric skins made from a capacitive touch sensing layer and a capacitive pressure sensing layer is presented in the paper. Due to the high elasticity of the dielectric layer of the spacer fabric, this structure exhibits a very fast recovery time (6 ms), low hysteresis (<5%), and high cycling stability (>20,000 times). Besides, the stacking structure of the electrode layers ( single-wall carbon nanotube/silver paste) is due to good durability even under large deformations (grasping, bending, stretching), and the skin is breathable for applications. As expected, the e-fabric skin is proven to be robust for detecting a spatial pressure distribution in real time. The extremely simple fabrication process is also an extra plus point in view of point mass production.

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Fabrication of high performance printed flexible conductors by doping of polyaniline nanomaterials into silver paste

Abstract: An innovation application of doping conjugated polyaniline nano-dendrites (PANIs) into electrical conductive composites (ECCs) to prepare advanced flexible or stretchable printing circuits with better electrical conductivity and mechanical stability.

Cited by 37 publications

References 50 publications

Fabrication of Novel Printable Electrically Conductive Adhesives (ECAs) with Excellent Conductivity and Stability Enhanced by the Addition of Polyaniline Nanoparticles

Fabrication of Novel Printable Electrically Conductive Adhesives (ECAs) with Excellent Conductivity and Stability Enhanced by the Addition of Polyaniline Nanoparticles

Interface Design for Stretchable Electronic Devices

Simultaneous Sensing of Touch and Pressure by Using Highly Elastic e-Fabrics

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