Stretchable Heater Using Ligand-Exchanged Silver Nanowire Nanocomposite for Wearable Articular Thermotherapy

Choi, Suji; Park, Jinkyung; Hyun, Wonji; Kim, Jangwon; Kim, Jaemin; Lee, Young Bum; Song, Changyeong; Hwang, Hye Jin; Kim, Ji Hoon; Hyeon, Taeghwan; Kim, Dae‐Hyeong

doi:10.1021/acsnano.5b02790

Cited by 501 publications

(486 citation statements)

References 45 publications

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“…[129][130][131][132] The percolated assembly of ultralong Ag NWs provides low sheet resistance (<10 Ω sq −1 ), 133,134 while maintaining high transparency owing to their highly porous structure. As Ag NWs are easily deposited on the target surface by spin casting or doctor blading, the Ag NW-based QLEDs can be cost-effective and highly flexible.…”

Section: Flexible Transparent Qledsmentioning

confidence: 99%

Flexible quantum dot light-emitting diodes for next-generation displays

et al. 2018

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In the future electronics, all device components will be connected wirelessly to displays that serve as information input and/or output ports. There is a growing demand of flexible and wearable displays, therefore, for information input/output of the nextgeneration consumer electronics. Among many kinds of light-emitting devices for these next-generation displays, quantum dot light-emitting diodes (QLEDs) exhibit unique advantages, such as wide color gamut, high color purity, high brightness with low turn-on voltage, and ultrathin form factor. Here, we review the recent progress on flexible QLEDs for the next-generation displays. First, the recent technological advances in device structure engineering, quantum-dot synthesis, and high-resolution full-color patterning are summarized. Then, the various device applications based on cutting-edge quantum dot technologies are described, including flexible white QLEDs, wearable QLEDs, and flexible transparent QLEDs. Finally, we showcase the integration of flexible QLEDs with wearable sensors, micro-controllers, and wireless communication units for the next-generation wearable electronics.

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Section: Flexible Transparent Qledsmentioning

confidence: 99%

Flexible quantum dot light-emitting diodes for next-generation displays

et al. 2018

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“…Irrespective of the type of the active sensing element of the sensors, changes in the electrical parameters of a majority of the physical sensing platforms are induced by the mechanical deformations experienced directly by the sensing elements or imposed by the encapsulating assembly on the sensing components under an applied load. Interestingly, through this simple and effective operating mechanism, an assortment of flexible and stretchable functional sensors have been developed and optimized in recent years for various healthcare and medical engineering applications, notably for artificial electronic skins 7,8,[44][45][46] , physiological monitoring and assessment systems 10,47 , and therapeutic and drug delivery platforms [48][49][50] . In this review, we offer a broad overview of the flexible and wearable physical sensing platforms emerging for healthcare and biomedical applications in the last 5 years ( Figure 2).…”

Section: Introductionmentioning

confidence: 99%

Emerging flexible and wearable physical sensing platforms for healthcare and biomedical applications

2016

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There are now numerous emerging flexible and wearable sensing technologies that can perform a myriad of physical and physiological measurements. Rapid advances in developing and implementing such sensors in the last several years have demonstrated the growing significance and potential utility of this unique class of sensing platforms. Applications include wearable consumer electronics, soft robotics, medical prosthetics, electronic skin, and health monitoring. In this review, we provide a state-ofthe-art overview of the emerging flexible and wearable sensing platforms for healthcare and biomedical applications. We first introduce the selection of flexible and stretchable materials and the fabrication of sensors based on these materials. We then compare the different solid-state and liquid-state physical sensing platforms and examine the mechanical deformation-based working mechanisms of these sensors. We also highlight some of the exciting applications of flexible and wearable physical sensors in emerging healthcare and biomedical applications, in particular for artificial electronic skins, physiological health monitoring and assessment, and therapeutic and drug delivery. Finally, we conclude this review by offering some insight into the challenges and opportunities facing this field.

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“…9 In addition, the low thermal conductivity of ITO can lead to slow heating and cooling rates. 10 Because of these disadvantages of ITO, the use of low-dimensional and stretchable conductive materials, such as graphene, [11][12][13] CNTs, 14,15 metal nanowires (mNWs) 7,[16][17][18] and serpentine patterns of metal films, 19,20 has been studied extensively in the search for stretchable heaters. However, carbon-based, transparent heaters require high operation voltages because of their relatively high R s values without doping (4~250 Ω per sq), which can degrade their power efficiency.…”

Section: Introductionmentioning

confidence: 99%

Rapid production of large-area, transparent and stretchable electrodes using metal nanofibers as wirelessly operated wearable heaters

et al. 2017

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A rapidly growing interest in wearable electronics has led to the development of stretchable and transparent heating films that can replace the conventional brittle and opaque heaters. Herein, we describe the rapid production of large-area, stretchable and transparent electrodes using electrospun ultra-long metal nanofibers (mNFs) and demonstrate their potential use as wirelessly operated wearable heaters. These mNF networks provide excellent optoelectronic properties (sheet resistance of~1.3 Ω per sq with an optical transmittance of~90%) and mechanical reliability (90% stretchability). The optoelectronic properties can be controlled by adjusting the area fraction of the mNF networks, which also enables the modulation of the power consumption of the heater. For example, the low sheet resistance of the heater presents an outstanding power efficiency of 0.65 W cm − 2 (with the temperature reaching 250°C at a low DC voltage of 4.5 V), which is~10 times better than the properties of conventional indium tin oxide-based heaters. Furthermore, we demonstrate the wireless fine control of the temperature of the heating film using Bluetooth smart devices, which suggests substantial promise for the application of this heating film in next-generation wearable electronics.

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Stretchable Heater Using Ligand-Exchanged Silver Nanowire Nanocomposite for Wearable Articular Thermotherapy

Cited by 501 publications

References 45 publications

Flexible quantum dot light-emitting diodes for next-generation displays

Flexible quantum dot light-emitting diodes for next-generation displays

Emerging flexible and wearable physical sensing platforms for healthcare and biomedical applications

Rapid production of large-area, transparent and stretchable electrodes using metal nanofibers as wirelessly operated wearable heaters

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