Coiled Fiber‐Shaped Stretchable Thermal Sensors for Wearable Electronics

He, Yonglin; Gui, Qinyuan; Liao, Shenglong; Jia, Hanyu; Wang, Yapei

doi:10.1002/admt.201600170

Cited by 49 publications

(33 citation statements)

References 32 publications

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“…We notice that in general CNT coated fibrous sensors are of higher sensitivity to temperature change than the graphene sheets coated subject to the fact that the CNTs networks among are more effective in temperature control charge transport . Furthermore, the fibrous temperature sensors (Figure a) coated with the mixture of CNTs and [EMIM]Tf 2 N show the highest temperature sensitivity (1.23% °C −1 ) among recently reported FeCl 3 , CNT‐based, and graphic material‐based flexible thermistors (Figure g). Evidently, the ionic liquid, [EMIM]Tf 2 N, facilitates the temperature response current conducting.…”

Section: Resultsmentioning

confidence: 65%

“…Evidently, the ionic liquid, [EMIM]Tf 2 N, facilitates the temperature response current conducting. Figure g also illustrates that the fibrous sensors with the mixture of CNT and [EMIM]Tf 2 N decrease 23.3 KΩ every centigrade, two orders of magnitude higher than the traditional metallic resistance temperature detectors . Thus, the readout of our temperature sensors does not need high gain amplifiers and high precision analog to digital converters, making it convenient for integration and hence decreases the overall cost in their fabrication process ( Figure h).…”

Section: Resultsmentioning

confidence: 92%

“…g) The comparison of temperature sensing property between this research and other materials reported in refs. .…”

Section: Resultsmentioning

confidence: 99%

“…Lee et al acquired a capacitance‐type textile‐based pressure sensor based on highly conductive fibers coated with dielectric rubber materials . On the other hand, in order to acquire better temperature sensing performance, temperature‐sensing materials, such as FeCl 3 , graphene, carbon nanotubes (CNTs), and silver, were adopted, which were encapsulated by the different fibrous substrates. Nevertheless, the current works based on fibrous textile sensors have some unresolved issues: due to the mutual interference of weft‐ and warp‐sensing yarns, the position sensing is vague for a resistance‐type pressure sensor array, while for the temperature sensing, the current sensing yarn still has only a single channel and is incapable of position‐related detection.…”

Section: Introductionmentioning

confidence: 99%

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Silk Composite Electronic Textile Sensor for High Space Precision 2D Combo Temperature–Pressure Sensing

Hou

et al. 2019

Small

201

207

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Wearable electronic textiles based on natural biocompatible/biodegradable materials have attracted great attention due to applications in health care and smart clothes. Silkworm fibers are durable, good heat conductors, insulating, and biocompatible, and are therefore regarded as excellent mediating materials for flexible electronics. In this paper, a strategy on the design and fabrication of highly flexible multimode electronic textiles (E-textile) based on functionalized silkworm fiber coiled yarns and weaving technology is presented. To achieve enhanced temperature sensing performance, a mixture of carbon nanotubes and an ionic liquid ([EMIM] Tf 2 N) is embedded, which displays top sensitivity of 1.23% °C −1 and stability compared with others. Furthermore, fibrous pressure sensing based on the capacitance change of each cross-point of two yarns gives rise to highly position dependent and sensitivity sensing of 0.136 kPa −1 . Based on weaving technologies, a unique combo textile sensor, which can sense temperature and pressure independently with a position precision of 1 mm 2 , is obtained. The application to intelligent gloves endows the position dependent sensing of the weight, and temperature distribution sensing of the temperature.

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Section: Resultsmentioning

confidence: 65%

Section: Resultsmentioning

confidence: 92%

“…g) The comparison of temperature sensing property between this research and other materials reported in refs. .…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Silk Composite Electronic Textile Sensor for High Space Precision 2D Combo Temperature–Pressure Sensing

Hou

et al. 2019

Small

201

207

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show abstract

“…He et al demonstrated another geometry-engineered stretchable temperature sensor. 169 They developed a continuous large-scale dyeing process to grow polypyrrole (PPy) as the sensing element on the Dacron thread. The resulting thread was then wound on an elastic PU fiber into a coiled structure.…”

Section: B Temperature Sensorsmentioning

confidence: 99%

Stretchable sensors for environmental monitoring

Yang

Deng

2019

Applied Physics Reviews

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The development of flexible and stretchable sensors has been receiving increasing attention in recent years. In particular, stretchable, skin-like, wearable sensors are desirable for a variety of potential applications such as personalized health monitoring, human-machine interfaces, and environmental sensing. In this paper, we review recent advancements in the development of mechanically flexible and stretchable sensors and systems that can be used to quantitatively assess environmental parameters including light, temperature, humidity, gas, and pH. We discuss innovations in the device structure, material selection, and fabrication methods which explain the stretchability characteristics of these environmental sensors and provide a detailed and comparative study of their sensing mechanisms, sensor characteristics, mechanical performance, and limitations. Finally, we provide a summary of current challenges and an outlook on opportunities for possible future research directions for this emerging field.

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A Skin‐Inspired Integrated Sensor for Synchronous Monitoring of Multiparameter Signals

Gui

Gao

et al. 2017

Adv Funct Materials

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Electronic skins, as the integration of multiple distinct sensors, have aroused broad interests owing to their great potential in sensing applications. However, problems including the interference between sensing components and the difficulty in synchronous monitoring are practically encountered when they are applied to mixed signals. In this work, efforts are devoted to trouble‐free technical strategies for laminating three sensors with different sensing abilities into a skin‐like electronic device. The use of ionic liquid, combined with particular circuit topologies, ensures the reliable stability against mechanical disturbance during the real‐time sensing tests. The intrinsic layered structure and three independent sensing functions of natural skins are successfully presented by this particular device in which three sensors with the ease of preparation are spatially integrated. The changes of temperature, pressure, and infrared light can be recorded simultaneously yet without mutual signal interference. The perfect integration of multiple functional sensors into a single skin‐like device without any signal interference makes an important progress for pursuing the goal of future electronic skins that can practically be used as skin.

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Coiled Fiber‐Shaped Stretchable Thermal Sensors for Wearable Electronics

Cited by 49 publications

References 32 publications

Silk Composite Electronic Textile Sensor for High Space Precision 2D Combo Temperature–Pressure Sensing

Silk Composite Electronic Textile Sensor for High Space Precision 2D Combo Temperature–Pressure Sensing

Stretchable sensors for environmental monitoring

A Skin‐Inspired Integrated Sensor for Synchronous Monitoring of Multiparameter Signals

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