Curving silver nanowires using liquid droplets for highly stretchable and durable percolation networks

Lim, Guh‐Hwan; Ahn, Kwangguk; Bok, Shingyu; Nam, Jaewook; Lim, Byungkwon

doi:10.1039/c7nr02615c

Cited by 25 publications

(20 citation statements)

References 52 publications

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“…Some methods are difficult to attribute to EISA, but they also allow for the formation of certain patterns. Silver nanowires were used in [134] to form stretchable electrodes with excellent electromechanical stability subjected to periodical mechanical deformation. An array of micron-sized droplets was applied by spray coating to the surface.…”

Section: Hybrid Methodsmentioning

confidence: 99%

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Applying Droplets and Films in Evaporative Lithography

Kolegov,

Barash

2020

Preprint

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The review covers experimental results of evaporative lithography and analyzes existing mathematical models of this method. Evaporating droplets and films are applied in different fields, such as cooling of heated surfaces of electronic devices, diagnostics in health care, creation of transparent conductive coatings on flexible substrates, surface patterning. A method called evaporative lithography emerged after establishing the connection between the coffee ring effect taking place in drying colloidal droplets, and naturally occuring inhomogeneous vapor flow densities from fluid-vapor interfaces. Essential control of the colloidal particle deposit patterns is achieved in this method by producing ambient conditions that induce a nonuniform evaporation profile from the colloidal liquid surface. Evaporative lithography is part of a wider field, which is known as "Evaporative-induced self-assembly" (EISA). EISA involves methods based on the contact line processes, methods employing particle interaction effects and evaporative lithography. As a rule, evaporative lithography is a flexible and single-stage process with such advantages as simplicity, low price and possibility of application to almost any substrate without pretreatment. Since no mechanical impact on a template is present in evaporative lithography, the template integrity is preserved in the process. The method is also useful for creating materials with localized functions, such as slipperiness and self-healing. For these reasons, evaporative lithography attracts increasing attention and has a number of noticeable achievements at present. We also analyze limitations of the approach and ways of its further development.

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Section: Hybrid Methodsmentioning

confidence: 99%

“…After the droplets impacted on the substrate, rings were formed from overlapping elastic nanowires. Such structures can well tolerate bending and stretching while retaining their electrical conductive properties [134].…”

Section: Hybrid Methodsmentioning

confidence: 99%

Applying Droplets and Films in Evaporative Lithography

Kolegov,

Barash

2020

Preprint

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“…For example, Ag and copper (Cu) NWs have been acknowledged as ideal candidates for stretchable interconnects. [62][63][64] The NW provides strength and size dependent elastic property compared to bulk Ag or Cu. Importantly, the deformable NW percolation network also contributes to minimal conductivity change under strain.…”

Section: Materials Approachesmentioning

confidence: 99%

“…NWs have been particularly demonstrated and well utilized in many flexible electronics applications, owing to its efficiency for carrier flows. For example, Ag and copper (Cu) NWs have been acknowledged as ideal candidates for stretchable interconnects . The NW provides strength and size dependent elastic property compared to bulk Ag or Cu.…”

Section: Wearable Sensor Compositionmentioning

confidence: 99%

Flexible Hybrid Sensors for Health Monitoring: Materials and Mechanisms to Render Wearability

et al. 2019

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adma.201902133.Wearable electronics have revolutionized the way physiological parameters are sensed, detected, and monitored. In recent years, advances in flexible and stretchable hybrid electronics have created emergent properties that enhance the compliance of devices to our skin. With their unobtrusive attributes, skin conformable sensors enable applications toward real-time disease diagnosis and continuous healthcare monitoring. Herein, critical perspectives of flexible hybrid electronics toward the future of digital health monitoring are provided, emphasizing its role in physiological sensing. In particular, the strategies within the sensor composition to render flexibility and stretchability while maintaining excellent sensing performance are considered. Next, novel approaches to the functionalization of the sensor for physical or biochemical stimuli are extensively covered. Subsequently, wearable sensors measuring physical parameters such as strain, pressure, temperature, as well as biological changes in metabolites and electrolytes are reported. Finally, their implications toward early disease detection and monitoring are discussed, concluding with a future perspective into the challenges and opportunities in emerging wearable sensor designs for the next few years. Wearable SensorsRecent progress in flexible and stretchable electronic systems has ignited exciting applications in consumer electronics, human computer interactions, augmented reality devices, and electronic skins. [1][2][3] Among these, a significant interest lies in health monitoring, [4][5][6] where vital functions may be measured continuously. Continuous health monitoring is far more superior than conventional healthcare workflow as the conventional approach can only offer snapshots of the physiological condition Figure 3. Material substrates for flexible and stretchable electronics, highlighting the advantages of choices for each material type. a) Common polymeric materials by order of glass transition temperatures. Reproduced with permission. [29] Copyright 2015, Elsevier. b) Schematic representation of crosslinked elastomeric substrates possessing configuration entropy. Reproduced with permission. [22]

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“…Interestingly, Lim and co-workers demonstrated a simple method to prepare network lms with Ag NW rings through a traditional spray-coating method (Lim et al 2017). They found that Ag NWs were elastically bent into curved shapes within micrometer-sized liquid droplets generated via the elastocapillary interaction during the spraying process (Fig.…”

Section: Ag Nw Tcesmentioning

confidence: 99%

Recent advances of metal nanowire based transparent conductive electrodes for flexible chromatic devices

Huang

Liu

Yang

et al. 2022

Preprint

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Transparent conductive electrodes (TCEs) that can maintain structure integrity and remain highly electrically conductive under large mechanical deformations are strongly desired and urgently needed in flexible optoelectronics. Nevertheless, the TCE technology in flexible electronics remains at a standstill, in which brittle indium tin oxide (ITO) is main material being used. Metal nanowires (NWs) networks with high optoelectronic performance as next-generation TCEs have widespread applications in flexible electronics, such as smart windows, touch panels, solar cells and flat displays. Here we review the latest advances that have been made for metal NWs TCEs, including the strategies for the synthesis of metal NWs, metal NWs films assembly via different solution-based processes and their practical applications as electrodes in various flexible chromic devices, as well as discuss their challenges and perspectives for the future practice.

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Curving silver nanowires using liquid droplets for highly stretchable and durable percolation networks

Cited by 25 publications

References 52 publications

Applying Droplets and Films in Evaporative Lithography

Applying Droplets and Films in Evaporative Lithography

Flexible Hybrid Sensors for Health Monitoring: Materials and Mechanisms to Render Wearability

Recent advances of metal nanowire based transparent conductive electrodes for flexible chromatic devices

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