Flexible active-matrix cells with selectively poled bifunctional polymer-ceramic nanocomposite for pressure and temperature sensing skin

Graz, Ingrid; Krause, Markus; Bauer‐Gogonea, S.; Bauer, Siegfried; Lacour, Stéphanie; Ploss, B.; Zirkl, Martin; Stadlober, Barbara; Wagner, S.

doi:10.1063/1.3191677

Cited by 193 publications

(139 citation statements)

References 19 publications

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“…13). Further increases in sensitivity can be achieved by incorporating novel nanomaterials/microstructures 6,30 .…”

Section: Resultsmentioning

confidence: 99%

“…Flexible and/or stretchable tactile sensors based on various micro/nano materials and structures have been the focus of intense study [6][7][8][9][10][11] . In particular, pressure-sensitive rubbers (PSRs) are used as resistive elements that respond to tensile strains [12][13][14] , which can be integrated with flexible organic electronics [15][16][17][18] and nanomaterial-based (nanowires 19 and nanotubes 20 ) transistors.…”

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confidence: 99%

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Stretchable silicon nanoribbon electronics for skin prosthesis

et al. 2014

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Sensory receptors in human skin transmit a wealth of tactile and thermal signals from external environments to the brain. Despite advances in our understanding of mechano-and thermosensation, replication of these unique sensory characteristics in artificial skin and prosthetics remains challenging. Recent efforts to develop smart prosthetics, which exploit rigid and/or semi-flexible pressure, strain and temperature sensors, provide promising routes for sensor-laden bionic systems, but with limited stretchability, detection range and spatiotemporal resolution. Here we demonstrate smart prosthetic skin instrumented with ultrathin, single crystalline silicon nanoribbon strain, pressure and temperature sensor arrays as well as associated humidity sensors, electroresistive heaters and stretchable multi-electrode arrays for nerve stimulation. This collection of stretchable sensors and actuators facilitate highly localized mechanical and thermal skin-like perception in response to external stimuli, thus providing unique opportunities for emerging classes of prostheses and peripheral nervous system interface technologies.

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“…13). Further increases in sensitivity can be achieved by incorporating novel nanomaterials/microstructures 6,30 .…”

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Stretchable silicon nanoribbon electronics for skin prosthesis

et al. 2014

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“…The intimate contact with the epidermal surface throughout its complex shape is of great advantage for sensorics in particular 53,57,58 . Inspired by natures archetype, electronic skins are already able to perceive temperature changes 44,59 , mimic the sensation of touch 41,60,61 , monitor physiological conditions 53,58,62 and even release drug doses on demand for therapy 63 . Approaches that enable self-healing 64 will lead to durable and multifunctional artificial skin.…”

Section: A Brief Review On Stretchable Electronicsmentioning

confidence: 99%

“…On the one hand, the highly cracked metal surface leads to a high electrical resistivity of thin film wires; on the other hand the percolation was maintained for applied lateral strains beyond 20% 139 , as schematically shown in figure 2.11b. Stretchable metal interconnects that could be elastically stretched over more than 100,000 loading cycles providing a relatively stable electrical connection, were demonstrated using this approach 59 .…”

Section: Microcrack Formationmentioning

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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“…Among them, bearing its flexibility nature, polyvinylidene fluoride (PVDF) is recently emerging as a promising material for flexible electronics [3]. Many researchers have tried to integrate PVDF into functional electronic devices, such as sensors and memories [4]. In most cases, the pyroelectric or piezoelectric properties are used in these applications and the material needs to be poled and operated well below its Curie temperature, where the polarization starts to vanish.…”

Section: Introductionmentioning

confidence: 99%

Flexible PVDF ferroelectric capacitive temperature sensor

Khan

Omran

Yao

et al. 2015

2015 IEEE 58th International Midwest Symposium on Circuits and Systems (MWSCAS)

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Abstract-In this paper, a capacitive temperature sensor based on polyvinylidene fluoride (PVDF) capacitor is explored. The PVDF capacitor is characterized below its Curie temperature. The capacitance of the PVDF capacitor changes vs temperature with a sensitivity of 16pF/ o C. The linearity measurement of the capacitance-temperature relation shows less than 0.7°C error from a best fit straight line. An LC oscillator based temperature sensor is demonstrated based on this capacitor.

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Flexible active-matrix cells with selectively poled bifunctional polymer-ceramic nanocomposite for pressure and temperature sensing skin

Cited by 193 publications

References 19 publications

Stretchable silicon nanoribbon electronics for skin prosthesis

Stretchable silicon nanoribbon electronics for skin prosthesis

Stretchable Magnetoelectronics

Flexible PVDF ferroelectric capacitive temperature sensor

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