Development of a Highly Flexible and Durable Fiber-Shaped Temperature Sensor Based on Graphene/Ni Double-Decked Layer for Wearable Devices

Hilal, Muhammad; Han, Jeong In

doi:10.1109/jsen.2020.2967347

Cited by 14 publications

(5 citation statements)

References 33 publications

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“…The modification of yarn with a biocompatible and heat sensitive material is an attractive approach to achieve high flexibility without compromising the sensing performance. Different metallic, organic, inorganic materials and their composites including nickel (Ni), carbon nanotube (CNT), graphene and PEDOT: PSS have been explored for the fabrication of temperature sensor [22][23][24][25][26][27]. The metallic materials are expensive while composite materials showed poor response time and large hysteresis and also have an issue with the formation of stable dispersion.…”

Section: Introductionmentioning

confidence: 99%

V₂O₅ nanowires coated yarn based temperature sensor for smart textiles

Khandelwal

Dahiya

2022

2022 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)

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Smart textiles can sense different stimuli such as pressure, temperature etc., to allow users to react and adapt. Such features are accomplished through integration of various fiber-based sensors and electronic components in textile structures. Yarn is 1-dimensional structure which can be modified to behave as a sensor and can further be integrated with other sensors or electronics to form smart textile by techniques like weaving, knitting, and braiding. In this work, a flexible temperature sensor is reported by modifying a stainlesssteel yarn with V2O5 nanowires. The current profile and temperature sensing performance is measured from 5 to 50 °C. The device exhibits sensitivity of 3.7 %/°C and response time of ∼9s. The present work demonstrates the potential of using yarn as a flexible temperature sensor that can be used to realize smart textile for wearable and healthcare applications.

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Section: Introductionmentioning

confidence: 99%

V₂O₅ nanowires coated yarn based temperature sensor for smart textiles

Khandelwal

Dahiya

2022

2022 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)

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“…TCR defined in Equation (6) indicates the temperature sensitivity of a certain material as a function of resistance,

where R 1 is initial resistance, R 2 is final resistance, T 1 is the initial temperature and T 2 is final temperature. In this work, initial temperature is 25 °C and final temperature is 100° C. Thus, TCR was calculated by measuring the resistance change between 25 °C and 100 °C [ 16 ].…”

Section: Resultsmentioning

confidence: 99%

“…Besides planar type substrates, cylindrical fiber type substrates with excellent flexibility have also been developed. Recently, our research group developed a flexible cylindrical fiber shaped temperature sensor based graphene/Ni layer which showed a positive temperature coefficient resistance (TCR) of 0.018 °C −1 [ 16 ]. Unlike the woven type which has a bundle of fibers, the PET fiber employed in our research group is the monofilament type.…”

Section: Introductionmentioning

confidence: 99%

Potentiometric Performance of a Highly Flexible-Shaped Trifunctional Sensor Based on ZnO/V2O5 Microrods

Appiagyei

Han

2021

Sensors

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A trifunctional flexible sensor was fabricated on a polyethylene terephthalate (PET) fiber surface. Synthesized ZnO and ZnO/V2O5 composite were coated on ZnO seed layer sputtered PET fiber. X-ray diffraction (XRD) and photoelectron spectroscopy (XPS) techniques confirmed the exact formation of ZnO and ZnO/V2O5. The fabricated ZnO/V2O5 on ZnO seeds base temperature sensor recorded better electrical properties and reversibility with a maximum temperature coefficient resistance (TCR) of 0.0111 °C−1. A calibration curve (R = 0.9941) within glucose concentration of (10 µM–10 mM) was obtained at +0.8 V vs. Ag/AgCl from current-voltage curves which assisted in calculating glucose sensitivity, limit of detection (LOD), limit of quantification (LOQ). The electrode achieved an outstanding performance of sensitivity (72.06 µAmM−1cm−2), LOD (174 µM), and LOQ (582 µM) at optimum deposition time. Interference from oxidation of interfering biomolecules such as ascorbic acid, dopamine, and uric acid were negligible compared to glucose. Finally, the fabricated electrode was employed as a pH sensor and displayed a pH sensitivity of 42.26 mV/pH (R = 0.9922). This fabricated ZnO/V2O5 electrode exhibited high sensitivity and a stable combined temperature, glucose, and pH sensor which is promising for development of multifunctional sensors in next generation wearables.

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“…For thin film-based temperature sensor, different organic, inorganic, metallic, hybrid materials and their composites including carbon nanotube (CNT), Nickel (Ni), graphene and PEDOT: PSS etc. have been explored [30][31][32][33][34]. The metallic materials are expensive and composites exhibits large hysteresis and high response time.…”

Section: State-of-the-artmentioning

confidence: 99%

V₂O₅ Nanowires-Coated Yarn-Based Temperature Sensor With Wireless Data Transfer for Smart Textiles

Khandelwal

Dahiya

Beniwal

et al. 2023

IEEE Flex. Electron.

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Smart textile with capabilities to sense different stimuli like temperature, pressure etc. are of considerable interest in applications such as sports, fashion, healthcare and robotics etc. The seamless integration of various sensors is desired for effective use of smart textiles in these applications. To this end, here, we present a yarn based wireless temperature sensor developed by modifying a P(VDF-TrFE) coated stainless steel yarn with vanadium pentoxide (V2O5) nanowires (NWs). The currentvoltage (I-V) characteristics and the temperature sensing performance of the devices are evaluated between 5-50°C with a step increase of 5°C. The unpacked device exhibits a sensitivity of 3.7 %/°C with a response time of 9s. The device is encapsulated with nanosilica/epoxy polymeric layer and its influence on sensors performance is also analyzed. After encapsulation, the device showed more linear response, but with slightly reduced sensitivity of 2.18 %/°C. Moreover, the effect of mechanical bending cycles on sensing performance of packaged device is studied. The sensor showed linear response even after 2000 bending cycles, but sensitivity was reduced to 1.257%/°C. Finally, the temperature sensor data is wirelessly transferred to demonstrate the potential use of developed sensors in above applications.

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Development of a Highly Flexible and Durable Fiber-Shaped Temperature Sensor Based on Graphene/Ni Double-Decked Layer for Wearable Devices

Cited by 14 publications

References 33 publications

V₂O₅ nanowires coated yarn based temperature sensor for smart textiles

V₂O₅ nanowires coated yarn based temperature sensor for smart textiles

Potentiometric Performance of a Highly Flexible-Shaped Trifunctional Sensor Based on ZnO/V2O5 Microrods

V₂O₅ Nanowires-Coated Yarn-Based Temperature Sensor With Wireless Data Transfer for Smart Textiles

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Development of a Highly Flexible and Durable Fiber-Shaped Temperature Sensor Based on Graphene/Ni Double-Decked Layer for Wearable Devices

Cited by 14 publications

References 33 publications

V2O5 nanowires coated yarn based temperature sensor for smart textiles

V2O5 nanowires coated yarn based temperature sensor for smart textiles

Potentiometric Performance of a Highly Flexible-Shaped Trifunctional Sensor Based on ZnO/V2O5 Microrods

V2O5 Nanowires-Coated Yarn-Based Temperature Sensor With Wireless Data Transfer for Smart Textiles

Contact Info

Product

Resources

About

V₂O₅ nanowires coated yarn based temperature sensor for smart textiles

V₂O₅ nanowires coated yarn based temperature sensor for smart textiles

V₂O₅ Nanowires-Coated Yarn-Based Temperature Sensor With Wireless Data Transfer for Smart Textiles