A Flexible Magnetic Field Sensor Based on AgNWs &amp; MNs-PDMS

Zhang, Qiang; Du, Yi; Sun, Youyi; Zhuo, Kai; Ji, Jianlong; Yuan, Zhongyun; Zhang, Wendong; Sang, Shengbo

doi:10.1186/s11671-018-2826-5

Cited by 9 publications

(5 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Under normal circumstances, the sensing principle is that the magnetic field causes the resistance to change in soft sensors due to the deformation caused by the movement of magnetic materials inside. Based on this principle, the combination of conductive NWs and magnetic nanoparticles can usually achieve fantastic performance [144,145]. For instance, Yap et al reported a flexible sensor using Fe 3 O 4 nanoparticles on which AuNWs were grown [140] (Fe 3 O 4 @AuNWs), as shown in Figure 6c.…”

Section: Other Types Of Nw-based Wearable Physical Sensorsmentioning

confidence: 99%

Recent Advances in Nanowire-Based Wearable Physical Sensors

Gu,

Shen,

Tian

et al. 2023

Biosensors

View full text Add to dashboard Cite

Wearable electronics is a technology that closely integrates electronic devices with the human body or clothing, which can realize human–computer interaction, health monitoring, smart medical, and other functions. Wearable physical sensors are an important part of wearable electronics. They can sense various physical signals from the human body or the surrounding environment and convert them into electrical signals for processing and analysis. Nanowires (NW) have unique properties such as a high surface-to-volume ratio, high flexibility, high carrier mobility, a tunable bandgap, a large piezoresistive coefficient, and a strong light–matter interaction. They are one of the ideal candidates for the fabrication of wearable physical sensors with high sensitivity, fast response, and low power consumption. In this review, we summarize recent advances in various types of NW-based wearable physical sensors, specifically including mechanical, photoelectric, temperature, and multifunctional sensors. The discussion revolves around the structural design, sensing mechanisms, manufacture, and practical applications of these sensors, highlighting the positive role that NWs play in the sensing process. Finally, we present the conclusions with perspectives on current challenges and future opportunities in this field.

show abstract

Section: Other Types Of Nw-based Wearable Physical Sensorsmentioning

confidence: 99%

Recent Advances in Nanowire-Based Wearable Physical Sensors

Gu,

Shen,

Tian

et al. 2023

Biosensors

View full text Add to dashboard Cite

show abstract

“…The nanoparticle polymer composites have the advantages of a softer, unlimited shape and area, but show lower signals [44,65,66]. The Metglas/PVDF/Metglas layer has an ultrahigh sensitivity and ultralow resolution; however, the three-layer structure is not easy to bend and is difficult to use as a flexible sensor [66][67][68]. The proposed sensor has a moderate flexibility and excellent sensitivity, and these performances can be maintained well even if the sensor is bent.…”

Section: The Application For Flexible Magnetic Field Sensormentioning

confidence: 99%

Evaluation of Metglas/polyvinylidene fluoride magnetoelectric bilayer composites for flexible in-plane resonant magnetic sensors

Zhang

et al. 2020

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

Flexible magnetic sensors are attracting more and more attention because of their application in wearable devices. In this paper, Metglas/polyvinylidene fluoride (PVDF) bilayer composite with good flexibility was fabricated to evaluate its applicability as a flexible in-plane magnetic sensor. The magnetoelectric (ME) coupling characteristics and sensing performance of the sample were investigated under different test conditions, including different AC and DC magnetic field, and changing the direction of the magnetic field and the bending degree of the sample. The sample shows a large ME coefficient with a value of 176.41 V cm−1 Oe. The sensitivity, linearity and deviation of the sample are 892.96 mV Oe−1, 0.99965 and ±2% for the AC magnetic field, and 157.6 mV Oe−1, 0.99444 and ±5% for the DC magnetic field, respectively, and it shows excellent stability over repetitions. Moreover, the sample was gradually rotated anticlockwise in the magnetic fields. The output voltage of the sample varies with the rotation angle and has a good symmetry in plane, which is described well by a sine function. In addition, the clamping effect of the sample was studied. Even when bent, the sample still maintains an excellent and stable performance. The sensitivity and linearity of the sample with a bent angle of 23.5° are 254.37 mV Oe−1 and 0.99975 for the AC magnetic field, and 28.07 mV Oe−1 and 0.99309 for the DC magnetic field, respectively. The deviation of measurements is small for both the AC and DC magnetic sensors. In summary, the present study shows that the Metglas/PVDF bilayer composite has a good sensing performance and is suitable for = flexible in-plane resonant magnetic sensors.

show abstract

“…Let its vibration direction in line with the built-up magnet, then the relative displacement of spring and damper occurs. Thus, the output voltage of the hall component varies with its position in a magnetic field [2], its structure is shown in Fig. 3.…”

Section: A Sensors 1) Vibration Testing Devicementioning

confidence: 99%