A flexible force-sensitive film with ultra-high sensitivity and wide linear range and its sensor

Zhang, Qi; Zhu, Zhenghou

doi:10.1016/j.jallcom.2021.162026

Cited by 7 publications

(1 citation statement)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, using the sensitive characteristics of the amorphous structure combined with the characteristics of film toughness, , high strength, and good magnetic performance, iron-based amorphous alloy films can be used as flexible film sensors to measure changes in magnetic signals, which has attracted great attention in wearable electronic devices, electronic skin, food, clinical medicine, and industrial fields (such as complex surfaces). − Based on sensor domain applications, the study of the magnetic surface effects of films is a key problem.…”

Section: Introductionmentioning

confidence: 99%

Environmental Friendly Modification of the Superhydrophobic Surface for Iron-Based Amorphous Alloy Films and Their Magnetic Surface Effect

et al. 2023

Self Cite

View full text Add to dashboard Cite

It is challenging to convert the superhydrophobic surfaces of iron-based amorphous films into hydrophilic surfaces through surface treatment. In this study, a novel, environmentally friendly method is used to change the superhydrophobic surfaces of Fe 78 Si 13 B 9 amorphous alloy films, which include their rougher and smoother surfaces. The boron element in the films reacted with the flavonoids and anthocyanins in the solution to create organic conversion membranes and organic boronizing naphthoquinone derivatives on the surfaces of the films when they were dipped in tea polyphenol aqueous solution at 80 °C for 60 min. On the rougher surface and the smoother surface, the organic conversion membranes had thicknesses of about 10 and 3 μm, respectively. When iron-based amorphous alloy films were employed as soft magnetic materials to create electronic and electrical devices, the packaging issue caused by low wettability with epoxy resin had been resolved because both the side surfaces of modified films had good wettability with epoxy resin. In addition, the magnetic surface effect of modified films was significant. After surface treatment, the inductance value of the film decreased by more than 25%. The magnetic surface effect of iron-based amorphous films can be applied to the preparation of tea sensors, and the sensor can achieve the "one to one" high precision test of "one tea curve". The magnetic surface effect of the film provides a quick, simple, lower cost, and strong anti-interference idea for the rapid detection of tea polyphenols.

show abstract

Section: Introductionmentioning

confidence: 99%

Environmental Friendly Modification of the Superhydrophobic Surface for Iron-Based Amorphous Alloy Films and Their Magnetic Surface Effect

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

Flexible, Lightweight, and Hydrophobic TPU/CNT Nanocomposite Foam With Different Surface Microstructures for High‐Performance Wearable Piezoresistive Sensors

Huang,

Gu,

Yang

et al. 2024

Journal of Polymer Science

View full text Add to dashboard Cite

Flexible piezoresistive pressure sensors, due to their lightweight, bendable, and highly sensitive characteristics, have been widely used in fields such as wearable devices, electronic skin, and intelligent robotics. Besides the development of various high‐performance materials, the performance of these sensors is closely related to the design of their surface microstructures. Different surface microstructures can significantly enhance the sensitivity, stability, and durability of piezoresistive sensors. In this paper, three types of flexible thermoplastic polyurethane (TPU)/carbon nanotube (CNT) nanocomposite foam piezoresistive sensors with different surface microstructures and internal porous structures were prepared using supercritical carbon dioxide (sc‐CO₂) foaming process. The effects of the three surface microstructures on the piezoresistive sensing performance of TPU/CNT nanocomposite foams were studied in detail. The results show that the foam sensor with a double‐ridge surface microstructure exhibits significantly enhanced sensing performance, including high sensitivity (0.309 kPa−1), fast response time (~40 ms), wide working range (0–80 kPa), and stability over more than 600 cycles. Additionally, the prepared flexible piezoresistive sensors can be integrated into smartwatches, fitness bands, and smart clothing, enabling real‐time monitoring of heart rate, blood pressure, respiratory rate, and physical activity. This provides precise data support, demonstrating the promising application prospects of these flexible surface microstructure foam piezoresistive sensors in the future.

show abstract

Flexible strain/pressure sensor with good sensitivity and broad detection range by coupling PDMS and carbon nanocapsules

Guo²,

Zhu³

et al. 2022

Journal of Alloys and Compounds

View full text Add to dashboard Cite

A flexible force-sensitive film with ultra-high sensitivity and wide linear range and its sensor

Cited by 7 publications

References 29 publications

Environmental Friendly Modification of the Superhydrophobic Surface for Iron-Based Amorphous Alloy Films and Their Magnetic Surface Effect

Environmental Friendly Modification of the Superhydrophobic Surface for Iron-Based Amorphous Alloy Films and Their Magnetic Surface Effect

Flexible, Lightweight, and Hydrophobic TPU/CNT Nanocomposite Foam With Different Surface Microstructures for High‐Performance Wearable Piezoresistive Sensors

Flexible strain/pressure sensor with good sensitivity and broad detection range by coupling PDMS and carbon nanocapsules

Contact Info

Product

Resources

About