Electrical, morphological, and electromagnetic interference shielding properties of silver nanowires and nanoparticles conductive composites

Yu, Yikang; Chen‐Chi, M.; Teng, Chih‐Chun; Huang, Yuan-Li; Lee, Shie-Heng; Wang, Ikai; Wei, Ming-Hsiung

doi:10.1016/j.matchemphys.2012.05.024

Cited by 96 publications

(41 citation statements)

References 30 publications

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“…The PVP plays the role of capping agent capable of controlling the growth rates of different surfaces of silver nanospecies. The near-unanimous choice of ethylene glycol as a reducer is based on its ability to solvate both AgNO 3 and PVP combined with its high boiling point (196 • C) necessary for the realization of syntheses at high temperature.…”

Section: Fabrication Of Silver Nanowiresmentioning

confidence: 99%

Flexible transparent conductive materials based on silver nanowire networks: a review

Langley¹,

Giusti²,

Mayousse³

et al. 2013

Nanotechnology

656

510

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The class of materials combining high electrical or thermal conductivity, optical transparency and flexibility is crucial for the development of many future electronic and optoelectronic devices. Silver nanowire networks show very promising results and represent a viable alternative to the commonly used, scarce and brittle indium tin oxide. The science and technology research of such networks aims at better understanding the physical and chemical properties of this nanowire-based material while opening attractive new applications.

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Section: Fabrication Of Silver Nanowiresmentioning

confidence: 99%

Flexible transparent conductive materials based on silver nanowire networks: a review

Langley¹,

Giusti²,

Mayousse³

et al. 2013

Nanotechnology

656

510

View full text Add to dashboard Cite

show abstract

“…In particular, the CNT composites' electrical conductivities reported by various research groups provide the basis for their broad applicability in space systems [1][2][3][4][5][6]9,10]. While development of EMI prevention devices has been focused on metallic meshes or metallic-resin composites [6,8,11,12] these devices are prone to significant disadvantages in terms of weight and cost [6,8,12,13]. The use of CNT composites for EMI prevention offers a potential solution that helps mitigate the weight and cost issues of metallic-based devices while still having the necessary properties that are critical for operations in challenging space environments.…”

Section: Introductionmentioning

confidence: 99%

Impact of Current and Temperature on Extremely Low Loading Epoxy-CNT Conductive Composites

et al. 2020

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Carbon nanotube (CNT) conductive composites have attracted significant attention for their potential use in applications such as electrostatic dissipation and/or electromagnetic interference shielding. The focus of this work is to evaluate resistivity trends of extremely low loading (<0.1 wt%) epoxy-CNT composites that lack a connected CNT network, but still present electrical conductivity values appropriate for those uses. The impact of current, temperature, and cycle life on electrical properties are here identified and tied to possible performance limits. At extremely low loadings, the CNT content is not sufficient to form a completely interconnected grid, thus, electrons must travel through insulating media. While still in the semi-conductor range, resistivity values are observed to decrease with increasing direct current and demonstrate a non-ohmic behavior. CNT epoxy composites were subjected to elevated currents and/or temperatures over diverse periods of time to examine impacts on resistivity. Microstructural analyses of composite samples were conducted to observe signs of damage for specimens taken to extreme temperatures/currents. An understanding of the electrical conductivity characteristics of extremely low loading epoxy-CNT composites and their failure mechanisms will aid in understanding risks associated with their use in challenging environments that may include high temperatures, high currents, and/or high frequencies.

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“…In recent years, many studies have reported the preparation of conductive thin films by coating AgNWs on a surface, leading to the widespread application of AgNW–optical grade polymer mixtures in touch screens and liquid crystal displays, since AgNWs provide good heat dissipation when incorporated into microelectronic and nanoelectronic components. Hence, many studies have also begun to focus on AgNW–polymer mixtures in recent years . AgNWs have higher atomic steps and more unsaturated bonds, leading to a higher surface energy, which makes the material more likely to undergo chemical reactions .…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, AgNWs are prone to oxidation when they come into contact with air and water vapour and cannot resist oxidative corrosion, especially in a high‐temperature and high‐humidity environment, leading to a significant drop in their functionality and scope of application. So far, most studies have used expensive coating machines and multi‐pass surface modification methods to improve the conductive properties of thin films . However, in this study, polybenzoxazine (PBZ)/epoxy (Epo) copolymer with low cost and high resistance is used along with a time‐saving, one‐pass hot pressing method for preparing large‐area conductive films.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characteristics of graphene‐reinforced silver nanowire/polybenzoxazine/epoxy copolymer composite thin films

Chou

Tsai

Hsu

et al. 2018

Polymer International

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In this study, composite thin films were fabricated by mixing one‐dimensional silver nanowires (AgNWs) with graphene, polybenzoxazine (PBZ) and epoxy. Their electrical and thermal properties under different environmental conditions were investigated. The AgNWs were prepared by a polyol reduction method using ethylene glycol as a reducing agent and polyvinylpyrrolidone as a soft template to reduce silver ions. High aspect ratio AgNWs were then mixed into polymer matrices to allow them to form electrical and thermal conductive paths. Next, a trace amount of graphene was added into the nanocomposites in order to enhance their electrical and thermal properties. The results showed that the addition of graphene and AgNWs improved the threshold leakage current, and a 33% increase in thermal diffusivity was observed. The water resistance and gas barrier properties of PBZ and graphene effectively improved the thermal oxidation stability, and a 200% increase in electrical conductivity was achieved after 120 h of thermal oxidation treatment. A considerable difference was observed between the moduli of epoxy and PBZ. Hardness and phase analyses using atomic force microscopy showed that material modulus mismatch occurred across the interface between the materials, triggering phonon scattering. However, the increase in thermal conductivity was not significant for either material. © 2018 Society of Chemical Industry

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Electrical, morphological, and electromagnetic interference shielding properties of silver nanowires and nanoparticles conductive composites

Cited by 96 publications

References 30 publications

Flexible transparent conductive materials based on silver nanowire networks: a review

Flexible transparent conductive materials based on silver nanowire networks: a review

Impact of Current and Temperature on Extremely Low Loading Epoxy-CNT Conductive Composites

Fabrication and characteristics of graphene‐reinforced silver nanowire/polybenzoxazine/epoxy copolymer composite thin films

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