Nanoparticle Based Curve Arrays for Multirecognition Flexible Electronics

Su, Meng; Li, Fengyu; Chen, Shuoran; Huang, Zhandong; Qin, Meng; Li, Wenbo; Zhang, Xingye; Song, Yanlin

doi:10.1002/adma.201504759

Cited by 165 publications

(113 citation statements)

References 37 publications

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“…[171] Copyright 2014, Wiley-VCH. [171] Recognizing emotional expressions such as laughing, [75,176] angry, [75] eyeball rolls, [75,176] and others [130,177] has been achieved by employing strain sensors to detect the associated skin movements. Adapted with permission.…”

Section: Human Movement Monitoringmentioning

confidence: 99%

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

et al. 2018

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Powered by market hype, trends among youth, and enormous funds, wearable technology has propelled itself as one of the most discussed topics in the field during past few years. A number of different companies representing all throughout the world have already entered into the market with hundreds of different products like smart watches, fitness trackers, smart garments, and even different smart medical attachments.Together with the evolution of digital health care, the wearable electronics field has evolved rapidly during the past few years and is expected to be expanded even further within the first few years of the next decade. As the next stage of wearables is predicted to move toward integrated wearables, nanomaterials and nanocomposites are in the spotlight of the search for novel concepts for integration. In addition, the conversion of current devices and attachment-based wearables into integrated technology may involve a significant size reduction while retaining their functional capabilities. Nanomaterialbased wearable sensors have already marked their presence with a significant distinction while nanomaterial-based wearable actuators are still at their embryonic stage. This review looks into the contribution of nanomaterials and nanocomposites to wearable technology with a focus on wearable sensors and actuators.

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Section: Human Movement Monitoringmentioning

confidence: 99%

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

et al. 2018

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“…Micropatterned surfaces, widely used in various microdevices including integrated circuits, [1,2] displays, [3,4] optical and microlaser devices, [5][6][7][8] biosensors, [9] and wearable electronics, [10,11] have attracted extensive research interests recently. Trying to fabricate micropatterns with tunable dimension, uniformity and continuous distribution is always desirable for realizing high-performance devices.…”

Section: Introductionmentioning

confidence: 99%

Direct Writing Micropatterns with a Resolution up to 1 µm

Zhang

et al. 2019

Adv Funct Materials

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Solution processes have been widely used to fabricate micropatterned surfaces for its mild operation conditions. However, current approaches suffer from limitations of either low resolution or high cost. Here, a facile approach is proposed for direct writing micropatterns with a resolution up to ≈1 µm using a unit of triple conical fibers with the side-by-side parallel arrangement. With this unit, the resolution of the micropatterns can be mainly controlled by the single central conical fiber, with one side of the fiber facilitating continuous and steady liquid transfer onto the substrate and the other side mechanically supporting the whole unit. Particularly, the unit enables tunable dimension of the micropatterns within a rather large scale from ≈1 µm to ≈1.3 mm by varying the writing parameters (speed, height, and angle). Moreover, the unit is applicable for direct patterning various liquids, even into microline arrays, with a high resolution. It enables direct writing conductive microline with a width of ≈1 µm in a centimeter length scale, which can be used for constructing microcircuits. It is envisioned that the result offers a new perspective for preparing high-resolution micropatterns using solution processes.

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“…Fabrication of one-dimensional (1D) granular and colloidal materials is of considerable interest, as they offer opportunities for a variety of electronic applications, including granular conductors1, flexible electronics for wearable devices2 and electromagnetic energy transport34. These 1D patterns can be assembled either from particle groups5678 or from individual particles910111213.…”

mentioning

confidence: 99%

“…The latter can also be employed in mechanical contexts, for example, as flexible artificial flagella or cilia141516. Compared to other methodologies such as lithography217, cluster-assisted assembly18 and colloidal polymerization19, field-directed assembly in electro- or magneto-rheological fluids2021 provides a simple, efficient22 and controllable approach for particle chain formation. However, it suffers from two major limitations that hinder its application, for example, in electronic-device manufacturing.…”

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confidence: 99%

Formation of printable granular and colloidal chains through capillary effects and dielectrophoresis

et al. 2017

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One-dimensional conductive particle assembly holds promise for a variety of practical applications, in particular for a new generation of electronic devices. However, synthesis of such chains with programmable shapes outside a liquid environment has proven difficult. Here we report a route to simply ‘pull' flexible granular and colloidal chains out of a dispersion by combining field-directed assembly and capillary effects. These chains are automatically stabilized by liquid bridges formed between adjacent particles, without the need for continuous energy input or special particle functionalization. They can further be deposited onto any surface and form desired conductive patterns, potentially applicable to the manufacturing of simple electronic circuits. Various aspects of our route, including the role of particle size and the voltages needed, are studied in detail. Looking towards practical applications, we also present the possibility of two-dimensional writing, rapid solidification of chains and methods to scale up chain production.

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Nanoparticle Based Curve Arrays for Multirecognition Flexible Electronics

Cited by 165 publications

References 37 publications

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

Significance of Nanomaterials in Wearables: A Review on Wearable Actuators and Sensors

Direct Writing Micropatterns with a Resolution up to 1 µm

Formation of printable granular and colloidal chains through capillary effects and dielectrophoresis

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