Mechanically Durable and Highly Stretchable Transistors Employing Carbon Nanotube Semiconductor and Electrodes

Chortos, Alex; Koleilat, Ghada I.; Pfattner, Raphael; Kong, Desheng; Lin, Pei; Nur, Roda; Lei, Ting; Wang, Shuangfeng; Liu, Nan; Lai, Ying‐Chih; Kim, Myung‐Gil; Chung, Jong Won; Lee, Sang Yoon; Bao, Zhenan

doi:10.1002/adma.201501828

Cited by 254 publications

(241 citation statements)

References 57 publications

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“…Recently, flexible electronic devices have gotten increasing attentions for potential applications in individual medical care, health assessment, sports monitoring, etc 1, 2, 3. Especially, the rapid advances in the design of various flexible sensors have tremendously broadened the scope of flexible electronics to new classes of soft electronic systems 4, 5.…”

Section: Introductionmentioning

confidence: 99%

Porous Ionic Membrane Based Flexible Humidity Sensor and its Multifunctional Applications

Sun³

et al. 2017

Advanced Science

238

172

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A highly flexible porous ionic membrane (PIM) is fabricated from a polyvinyl alcohol/KOH polymer gel electrolyte, showing well‐defined 3D porous structure. The conductance of the PIM changes more than 70 times as the relative humidity (RH) increases from 10.89% to 81.75% with fast and reversible response at room temperature. In addition, the PIM‐based sensor is insensitive to temperature (0–95 °C) and pressure (0–6.8 kPa) change, which indicates that it can be used as highly selective flexible humidity sensor. A noncontact switch system containing PIM‐based sensor is assembled, and results show that the switch responds favorably to RH change caused by an approaching finger. Moreover, an attachable smart label using PIM‐based sensor is explored to measure the water contents of human skin, which shows a great linear relationship between the sensitivity of the sensor and the facial water contents measured by a commercial reference device.

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Section: Introductionmentioning

confidence: 99%

Porous Ionic Membrane Based Flexible Humidity Sensor and its Multifunctional Applications

Sun³

et al. 2017

Advanced Science

238

172

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“…[1][2][3][4][5][6] Recent additional, related efforts seek to establish capabilities in rendering electronics capable not only of bending but also of stretching, where elastomers serve as the substrates. [7][8][9][10][11][12][13][14][15][16][17] Such systems can establish intimate, conformal contacts to complex curvilinear surfaces, such as those found in biology, with endurance to high levels of strain. Neither such characteristics is possible with conventional, rigid technologies formed on the surfaces of semiconductor wafers or glass panels.…”

Section: Introductionmentioning

confidence: 99%

Inorganic semiconducting materials for flexible and stretchable electronics

et al. 2017

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Recent progress in the synthesis and deterministic assembly of advanced classes of single crystalline inorganic semiconductor nanomaterial establishes a foundation for high-performance electronics on bendable, and even elastomeric, substrates. The results allow for classes of systems with capabilities that cannot be reproduced using conventional wafer-based technologies. Specifically, electronic devices that rely on the unusual shapes/forms/constructs of such semiconductors can offer mechanical properties, such as flexibility and stretchability, traditionally believed to be accessible only via comparatively low-performance organic materials, with superior operational features due to their excellent charge transport characteristics. Specifically, these approaches allow integration of high-performance electronic functionality onto various curvilinear shapes, with linear elastic mechanical responses to large strain deformations, of particular relevance in bio-integrated devices and bio-inspired designs. This review summarizes some recent progress in flexible electronics based on inorganic semiconductor nanomaterials, the key associated design strategies and examples of device components and modules with utility in biomedicine.

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“…Chortos et al recently developed novel stretchable transistors by incorporating layers of carbon nanotubes within a polymeric material to measure stresses and strains applied to the material. [203] The spatial orientation of the nanotube layers can be programmed to detect stretching or forces applied in desired directions, just as the orientation of cuticle microstructures of insects influences their specificity. The transistors themselves can be embedded into a variety of elastomer scaffolds; the composition of those scaffolds could potentially be optimized for durability or elasticity using various cuticle design principles found in insects.…”

Section: Detection Of Mechanical Signals In Insectsmentioning

confidence: 99%

It's Not a Bug, It's a Feature: Functional Materials in Insects

2018

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Over the course of their wildly successful proliferation across the earth, the insects as a taxon have evolved enviable adaptations to their diverse habitats, which include adhesives, locomotor systems, hydrophobic surfaces, and sensors and actuators that transduce mechanical, acoustic, optical, thermal, and chemical signals. Insect‐inspired designs currently appear in a range of contexts, including antireflective coatings, optical displays, and computing algorithms. However, as over one million distinct and highly specialized species of insects have colonized nearly all habitable regions on the planet, they still provide a largely untapped pool of unique problem‐solving strategies. With the intent of providing materials scientists and engineers with a muse for the next generation of bioinspired materials, here, a selection of some of the most spectacular adaptations that insects have evolved is assembled and organized by function. The insects presented display dazzling optical properties as a result of natural photonic crystals, precise hierarchical patterns that span length scales from nanometers to millimeters, and formidable defense mechanisms that deploy an arsenal of chemical weaponry. Successful mimicry of these adaptations may facilitate technological solutions to as wide a range of problems as they solve in the insects that originated them.

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Mechanically Durable and Highly Stretchable Transistors Employing Carbon Nanotube Semiconductor and Electrodes

Cited by 254 publications

References 57 publications

Porous Ionic Membrane Based Flexible Humidity Sensor and its Multifunctional Applications

Porous Ionic Membrane Based Flexible Humidity Sensor and its Multifunctional Applications

Inorganic semiconducting materials for flexible and stretchable electronics

It's Not a Bug, It's a Feature: Functional Materials in Insects

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