Flexible and Stretchable Polymers with Embedded Magnetic Nanostructures

Donolato, Marco; Tollan, Christopher; Porro, José María; Berger, Andreas; Vavassori, P.

doi:10.1002/adma.201203072

Cited by 54 publications

(53 citation statements)

References 28 publications

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“…This work is briefly introduced in subchapter 5.3. Beyond that, recently also other groups studied magnetic structures embedded in or on soft materials 109,218,219 , which gave rise to both, interesting fundamental phenomena as well as promising application potentials.…”

Section: Achievementsmentioning

confidence: 99%

Stretchable Magnetoelectronics

et al. 2011

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Abstract:In this work, stretchable magnetic sensorics is successfully established by combining metallic thin films revealing a giant magnetoresistance effect with elastomeric materials. Stretchability of the magnetic nanomembranes is achieved by specific morphologic features (e.g. wrinkles), which accommodate the applied tensile deformation while maintaining the electrical and magnetic integrity of the sensor device. The entire development, from the demonstration of the world-wide first elastically stretchable magnetic sensor to the realization of a technology platform for robust, ready-touse elastic magnetoelectronics with fully strain invariant properties, is described. The prepared soft giant magnetoresistive devices exhibit the same sensing performance as on conventional rigid supports, but can be stretched uniaxially or biaxially reaching strains of up to 270% and endure over 1,000 stretching cycles without fatigue. The comprehensive magnetoelectrical characterization upon tensile deformation is correlated with in-depth structural investigations of the sensor morphology transitions during stretching.With their unique mechanical properties, the elastic magnetoresistive sensor elements readily conform to ubiquitous objects of arbitrary shapes including the human skin. This feature leads electronic skin systems beyond imitating the characteristics of its natural archetype and extends their cognition to static and dynamic magnetic fields that by no means can be perceived by human beings naturally.Various application fields of stretchable magnetoelectronics are proposed and realized throughout this work. The developed sensor platform can equip soft electronic systems with navigation, orientation, motion tracking and touchless control capabilities. A variety of novel technologies, like smart textiles, soft robotics and actuators, active medical implants and soft consumer electronics will benefit from these new magnetic functionalities. Michael Melzer: Stretchable MagnetoelectronicsOutline 4

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Section: Achievementsmentioning

confidence: 99%

Stretchable Magnetoelectronics

et al. 2011

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“…[1][2][3][4][5][6] Especially, magnetic thin films and nanostructures on polymer substrates can be used for flexible/ stretchable data storage and transfer devices or magnetoelectric sensors. [7][8][9][10][11][12][13][14] Indeed, large arrays of magnetic nanostructures (nanowires, dots, antidots, . .…”

mentioning

confidence: 99%

Local Stiffness Effect on Ferromagnetic Response of Nanostructure Arrays in Stretchable Systems

Challab

Zighem

Faurie

et al. 2018

Physica Rapid Research Ltrs

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The control of magnetoelastic effects in magnetic media, their improvement or even their minimization according to the intended applications is a current problem. In this work, the effect of the elastic strain on the magnetic properties of Ni60Fe40 continuous films and nanowires deposited on Kapton® substrates has been investigated. For this purpose, piezoactuation mechanical tests are performed in situ with ferromagnetic resonance measurements. It has been observed that the continuous thin film and the array of nanowires exhibit distinct behaviors in the presence of an elastic strain field. Precisely, the induced magnetoelastic anisotropy is much less pronounced in the case of nanowires. This difference in behavior has been explained/investigated based on finite element simulations. These latter revealed that the average strain transmitted from flexible substrate to magnetic medium is less important in the case of nanowires compared to continuous film. This lack of strain transfer/transmission is related to the relative amount of free surface of the nanostructures combined with a strong mechanical contrast between Ni60Fe40 and Kapton (viz., a deposit relatively much more stiffer than the substrate). This important effect can be exploited in the future by controlling and optimizing geometries of nanostructures.

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“…, Ni, Cu) coated SiO 2 /Si wafer, 2 ) Peeling-off the metal film together with the top electronic devices from the SiO 2 /Si wafer in water, and 3 ) Sticking the peeled electronic devices onto an arbitrary receiver substrate by using commercial adhesive agents. With the peel-and-stick process, we and other groups have successfully transferred a range of electronic devices, including nanowire electronic devices11, amorphous Si thin-film solar cells12, memory devices13 and magnetic nano-devices14, to diverse receiver substrates such as papers, glasses, rubbers, fabrics, plastics and even ultrathin polymer sheets (<1 μm thick). All of these studies demonstrated that the peel-and-stick process can transfer functional thin-film electronic devices with almost a 100% yield regardless of the feature size, thickness and shape without degrading the device performance.…”

mentioning

confidence: 99%

Peel-and-Stick: Mechanism Study for Efficient Fabrication of Flexible/Transparent Thin-film Electronics

Lee

Kim

Zou

et al. 2013

Sci Rep

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Peel-and-stick process, or water-assisted transfer printing (WTP), represents an emerging process for transferring fully fabricated thin-film electronic devices with high yield and fidelity from a SiO2/Si wafer to various non-Si based substrates, including papers, plastics and polymers. This study illustrates that the fundamental working principle of the peel-and-stick process is based on the water-assisted subcritical debonding, for which water reduces the critical adhesion energy of metal-SiO2 interface by 70 ~ 80%, leading to clean and high quality transfer of thin-film electronic devices. Water-assisted subcritical debonding is applicable for a range of metal-SiO2 interfaces, enabling the peel-and-stick process as a general and tunable method for fabricating flexible/transparent thin-film electronic devices.

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Flexible and Stretchable Polymers with Embedded Magnetic Nanostructures

Cited by 54 publications

References 28 publications

Stretchable Magnetoelectronics

Stretchable Magnetoelectronics

Local Stiffness Effect on Ferromagnetic Response of Nanostructure Arrays in Stretchable Systems

Peel-and-Stick: Mechanism Study for Efficient Fabrication of Flexible/Transparent Thin-film Electronics

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