A flexible magnetic field sensor based on paramagnetic C60@Fe3O4 nanocomposites and ordered hexagonally structured substrate

Zhang, Qiang; Song, Jianqiao; Wu, Zhiyong; Hu, Linjun; Li, Sijin; Sang, Shengbo

doi:10.1016/j.jmmm.2021.168171

Cited by 3 publications

(1 citation statement)

References 31 publications

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“…Affirmative answers to these questions are necessary to ensure that the compliant PDMS-Fe 3 O 4 -NP films can become the material of choice for compliant magnetically responsive durable patches that can be integrated into wearable electronics applications. There have been only a handful of studies that have demonstrated the robustness of the functional properties of Fe 3 O 4embedded PDMS films specifically in flexed [5,14,15] and/or stretched configurations [12], and other studies have focused on characterizing their mechanical properties as a function of applied magnetic field [16,17]. However, the robustness of the magnetic properties of such films in presence of other deformation configurations (e.g.…”

Section: Introductionmentioning

confidence: 99%

Flexible and twistable free-standing PDMS-magnetic-nanoparticle-based soft magnetic films with robust magnetic properties

Subudhi,

Zhao,

Wang

et al. 2024

Flex. Print. Electron.

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In this paper, we develop multifunctional, physically soft, mechanically compliant, and magnetically responsive PDMS films, with embedded Fe3O4 nanoparticles (NPs), that show robust magnetic properties over a significant range of mechanical deformation. First, we establish that the magnetic properties, namely the saturation magnetization (Ms), remanent magnetization (Mr), and intrinsic coercivity (Hci) of these PDMS films in highly deformed configurations, i.e., in folded, twisted (with different twist angles), and bent (flexed) configurations, show very little degradation compared to those obtained in undeformed configurations. Next, the films were subjected to repetitive cycles of zero-to-max deformation (R=0) and the saturation magnetization of the films was shown to not exhibit any significant degree of progressive degradation as a function of cyclic deformation history. These findings confirm the excellent robustness and cyclic durability of magnetic properties shown by these magnetic and compliant PDMS films and point to their suitability for wearable electronics applications.

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Section: Introductionmentioning

confidence: 99%

Flexible and twistable free-standing PDMS-magnetic-nanoparticle-based soft magnetic films with robust magnetic properties

Subudhi,

Zhao,

Wang

et al. 2024

Flex. Print. Electron.

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Pickering emulsion strategy for high compressive carbon aerogel for use as insulation material and dual-mode pressure/magnetic sensor

Zhang

Liao

Wang

et al. 2023

Ceramics International

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Structural, electrical and magnetoresistance feature of PP+Fe₃O₄ + Multi-walled carbon nanotubes nano-hybrid based polymer nanocomposite

Hajiyeva,

Shirinova,

Alizada

et al. 2024

Journal of Thermoplastic Composite Materials

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This work studied the role of the iron oxide and MWCNT in a change of the electrophysical properties of PP + Fe3O4 + MWCNT nanocomposite to evaluate the potential of these nanocomposites as magnetic field sensors and EMI materials. The morphology of the obtained nanocomposites was studied with a scanning electron microscope and investigated that the sizes of both magnetite nanoparticles and carbon nanotubes stay stable during the three-phase nanocomposite formation. In addition, the X-ray diffraction method revealed that MWCNT plays an essential role in the ordered structure-formation of a polymer nanocomposite more than iron oxide nanoparticles. Dielectric properties of the PP + Fe3O4 nanocomposite were studied. Both dielectric permeability and dielectric losses of PP+MWCNT+Fe3O4 nanocomposites were enhanced. The dielectric permeability of the nanocomposite increased due to the interphase polarization, which in turn related to the formation of ordered structure caused the partial arrangement of carbon nanotubes in the polymer. Furthermore, the study showed that the negative magnetoresistance effect of PP+MWCNT+Fe3O4 nanocomposites is more dependent on the amount of Fe3O4 nanoparticles than that of MWCNT, which explained by the spin polarization of Fe3O4 nanoparticles at room temperature. In this research, the PP+5%Fe3O4+1%MWCNT nanocomposites were considered to be an effective material for magnetic field sensors and EMI shielding.

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A flexible magnetic field sensor based on paramagnetic C60@Fe3O4 nanocomposites and ordered hexagonally structured substrate

Cited by 3 publications

References 31 publications

Flexible and twistable free-standing PDMS-magnetic-nanoparticle-based soft magnetic films with robust magnetic properties

Flexible and twistable free-standing PDMS-magnetic-nanoparticle-based soft magnetic films with robust magnetic properties

Pickering emulsion strategy for high compressive carbon aerogel for use as insulation material and dual-mode pressure/magnetic sensor

Structural, electrical and magnetoresistance feature of PP+Fe₃O₄ + Multi-walled carbon nanotubes nano-hybrid based polymer nanocomposite

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A flexible magnetic field sensor based on paramagnetic C60@Fe3O4 nanocomposites and ordered hexagonally structured substrate

Cited by 3 publications

References 31 publications

Flexible and twistable free-standing PDMS-magnetic-nanoparticle-based soft magnetic films with robust magnetic properties

Flexible and twistable free-standing PDMS-magnetic-nanoparticle-based soft magnetic films with robust magnetic properties

Pickering emulsion strategy for high compressive carbon aerogel for use as insulation material and dual-mode pressure/magnetic sensor

Structural, electrical and magnetoresistance feature of PP+Fe3O4 + Multi-walled carbon nanotubes nano-hybrid based polymer nanocomposite

Contact Info

Product

Resources

About

Structural, electrical and magnetoresistance feature of PP+Fe₃O₄ + Multi-walled carbon nanotubes nano-hybrid based polymer nanocomposite