Controlled aqueous synthesis of ultra-long copper nanowires for stretchable transparent conducting electrode

Hwang, Chahwan; An, Jihyun; Choi, Byung Chul; Kim, Kwanpyo; Jung, Soon‐Won; Baeg, Kang Jun; Kim, Myung Gil; Ok, Kang Min; Hong, Jongin

doi:10.1039/c5tc03614c

Cited by 81 publications

(80 citation statements)

References 56 publications

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“…Due to the fractures of CuNWs or the loss of connections, a ninefold increase of resistance was observed at a strain of 30%, and almost 100-fold increase of resistance at a strain of 50% for the thin films of CuNWs on PDMS. The resistivity increased with repeated strain cycles, and stabilized after 20 cycles [92]. The resistance changes upon stretching became less sensitive when the CuNWs were welded at the nanoscale junctions by a circularly polarized laser [99].…”

Section: Stretchable Conductorsmentioning

confidence: 99%

“…Spray coating is an assemly process in which aqueous or organic inks are atomized into uniform and fine droplets through a spray gun by means of moderately high pressure before reaching the to-be-coated substrate surface, which usually maintains a certain temperature to allow the deposited droplets to solidify into a thin film by quickly removing the solvent [85][86][87][88][89][90][91][92][93]. The ink preparetion is therefore important to allow a uniform deposition of copper nanomaterial assemblies.…”

Section: Spray Coatingmentioning

confidence: 99%

“…The ink preparetion is therefore important to allow a uniform deposition of copper nanomaterial assemblies. Solvents, such as isopropanol (IPA), ethanol, hexane, or toluene, are used to improve the dispersion stability [63,85,[89][90][91][92][93][94]. The Cu content can range from 0.6 to 1.2 mg mL −1 in the inks [91].…”

Section: Spray Coatingmentioning

confidence: 99%

See 2 more Smart Citations

Copper nanomaterials and assemblies for soft electronics

Yang

Zhu

2019

Sci. China Mater.

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Soft electronics that can simultaneously offer electronic functions and the capability to be deformed into arbitrary shapes are becoming increasingly important for wearable and bio-implanted applications. The past decade has witnessed tremendous progress in this field with a myriad of achievements in the preparation of soft electronic conductors, semiconductors, and dielectrics. Among these materials, copper-based soft electronic materials have attracted considerable attention for their use in flexible or stretchable electrodes or interconnecting circuits due to their low cost and abundance with excellent optical, electrical and mechanical properties. In this review, we summarize the recent progress on these materials with the detailed discussions of the synthesis of copper nanomaterials, approaches for their assemblies, strategies to resist the ambient corrosion, and their applications in various fields including flexible electrodes, sensors, and other soft devices. We conclude our discussions with perspectives on the remaining challenges to make copper soft conductors available for more widespread applications.

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Section: Stretchable Conductorsmentioning

confidence: 99%

Section: Spray Coatingmentioning

confidence: 99%

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Copper nanomaterials and assemblies for soft electronics

Yang

Zhu

2019

Sci. China Mater.

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“…To increase the stretchability of CuNW-based stretchable and transparent electrodes, several strategies have been suggested, such as aspect ratio control, selective nanowelding, and embedding [40][41][42][43][44][45][46]. One way of improving the stretchability of the CuNW-based transparent electrode is the selective nanowelding developed by Han et al [42].…”

Section: Cu Nanowiresmentioning

confidence: 99%

Nanomaterial-based stretchable and transparent electrodes

Kim

Hyun

Jang

et al. 2016

Journal of Information Display

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The recent advent of unprecedented wearable applications engendered the need for stretchable electronics, which can be realized by making the individual components stretchable. The transparent conducting electrode is one of the most important components of optoelectronic devices. Therefore, developing transparent electrodes in a stretchable form is essential for the implementation of stretchable electronics. In this paper, the recent efforts in the development of stretchable and transparent electrodes, particularly those using nanomaterials such as metal nanowires, metal nanofibers, and carbon nanotubes are introduced. ARTICLE HISTORY

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“…Cu NW networks have exhibited comparable conductivity and transparency to Ag NWs, e.g., 51.5 Ω sq −1 at 93.1% T [123] and 100 Ω sq −1 at 95% T. [124] Ultralong Cu nanofibers [86] and NWs [87] were introduced in a manner similar to Ag NWs for better conductance with fewer junctions. Cu nanofibers with a high aspect ratio (≈100 000) were fabricated and achieved a low sheet resistance of 50 Ω sq −1 at 90% T (Figure 3g).…”

Section: Metal Nw-based Stecmentioning

confidence: 99%

Deformable and Transparent Ionic and Electronic Conductors for Soft Energy Devices

Park

Parida

Lee

2017

Advanced Energy Materials

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The recent boom in deformable or stretchable electronics, flexible transparent displays/screens, and their integration into the human body has facilitated the development of multifunctional energy devices that are stretchable, transparent, wearable, and/or biocompatible while meeting the energy or power requirements. The development of soft energy systems begins with the preparation of relevant conductors and the design of innovative device configurations. In this study, recent advances and trends in stretchable and transparent electronic and ionic conductors are reviewed coupled with the growing efforts to use them for soft energy storage and conversion systems. Stretchable transparent ionic conductors present possibilities for use as current collectors and electrolytes in soft electronic/energy devices, providing novel insight into biofriendly systems for an effective human–machine interaction. Moreover, representative examples that demonstrate soft energy devices based on stretchable transparent ionic/electronic conductors are discussed in detail. Furthermore, the challenges and perspectives of developing novel stretchable transparent conductors and device configurations with tailored features are also considered.

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Controlled aqueous synthesis of ultra-long copper nanowires for stretchable transparent conducting electrode

Abstract: A stretchable transparent electrode was achieved with rationally-controlled ultra-long copper nanowires and low-temperature direct spray coating.

Cited by 81 publications

References 56 publications

Copper nanomaterials and assemblies for soft electronics

Copper nanomaterials and assemblies for soft electronics

Nanomaterial-based stretchable and transparent electrodes

Deformable and Transparent Ionic and Electronic Conductors for Soft Energy Devices

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