Journal ArticleDOI
An ultra-lightweight design for imperceptible plastic electronics
Martin Kaltenbrunner,Tsuyoshi Sekitani,Tsuyoshi Sekitani,Jonathan T. Reeder,Jonathan T. Reeder,Tomoyuki Yokota,Kazunori Kuribara,Takeyoshi Tokuhara,Michael Drack,Reinhard Schwödiauer,Ingrid Graz,Simona Bauer-Gogonea,Siegfried Bauer,Takao Someya,Takao Someya +14 more
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In this paper, the authors present a platform that makes electronics both virtually unbreakable and imperceptible on polyimide polysilicon elastomers, which can be operated at high temperatures and in aqueous environments.Abstract:
Electronic devices have advanced from their heavy, bulky origins to become smart, mobile appliances. Nevertheless, they remain rigid, which precludes their intimate integration into everyday life. Flexible, textile and stretchable electronics are emerging research areas and may yield mainstream technologies. Rollable and unbreakable backplanes with amorphous silicon field-effect transistors on steel substrates only 3 μm thick have been demonstrated. On polymer substrates, bending radii of 0.1 mm have been achieved in flexible electronic devices. Concurrently, the need for compliant electronics that can not only be flexed but also conform to three-dimensional shapes has emerged. Approaches include the transfer of ultrathin polyimide layers encapsulating silicon CMOS circuits onto pre-stretched elastomers, the use of conductive elastomers integrated with organic field-effect transistors (OFETs) on polyimide islands, and fabrication of OFETs and gold interconnects on elastic substrates to realize pressure, temperature and optical sensors. Here we present a platform that makes electronics both virtually unbreakable and imperceptible. Fabricated directly on ultrathin (1 μm) polymer foils, our electronic circuits are light (3 g m(-2)) and ultraflexible and conform to their ambient, dynamic environment. Organic transistors with an ultra-dense oxide gate dielectric a few nanometres thick formed at room temperature enable sophisticated large-area electronic foils with unprecedented mechanical and environmental stability: they withstand repeated bending to radii of 5 μm and less, can be crumpled like paper, accommodate stretching up to 230% on prestrained elastomers, and can be operated at high temperatures and in aqueous environments. Because manufacturing costs of organic electronics are potentially low, imperceptible electronic foils may be as common in the future as plastic wrap is today. Applications include matrix-addressed tactile sensor foils for health care and monitoring, thin-film heaters, temperature and infrared sensors, displays, and organic solar cells.read more
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Design, fabrication and control of soft robots
Daniela Rus,Michael T. Tolley +1 more
TL;DR: This Review discusses recent developments in the emerging field of soft robotics, and explores the design and control of soft-bodied robots composed of compliant materials.
Journal ArticleDOI
Fully integrated wearable sensor arrays for multiplexed in situ perspiration analysis
Wei Gao,Wei Gao,Sam Emaminejad,Sam Emaminejad,Sam Emaminejad,Hnin Yin Yin Nyein,Hnin Yin Yin Nyein,Samyuktha Challa,Kevin Chen,Kevin Chen,Austin J Peck,Hossain M. Fahad,Hossain M. Fahad,Hiroki Ota,Hiroki Ota,Hiroshi Shiraki,Hiroshi Shiraki,Daisuke Kiriya,Daisuke Kiriya,Der Hsien Lien,George A. Brooks,Ronald W. Davis,Ali Javey,Ali Javey +23 more
TL;DR: This work bridges the technological gap between signal transduction, conditioning, processing and wireless transmission in wearable biosensors by merging plastic-based sensors that interface with the skin with silicon integrated circuits consolidated on a flexible circuit board for complex signal processing.
Journal ArticleDOI
Pursuing prosthetic electronic skin.
Alex Chortos,Jia Liu,Zhenan Bao +2 more
TL;DR: This Review will cover materials and devices designed for mimicking the skin's ability to sense and generate biomimetic signals.
Journal ArticleDOI
A wearable and highly sensitive pressure sensor with ultrathin gold nanowires
Shu Gong,Willem Heinrich Schwalb,Yongwei Wang,Yi Chen,Yue Tang,Jye Si,Bijan Shirinzadeh,Wenlong Cheng +7 more
TL;DR: An efficient, low-cost fabrication strategy to construct a highly sensitive, flexible pressure sensor by sandwiching ultrathin gold nanowire-impregnated tissue paper between two thin polydimethylsiloxane sheets is reported, enabling facile large-area integration and patterning for mapping spatial pressure distribution.
Journal ArticleDOI
Fiber‐Based Wearable Electronics: A Review of Materials, Fabrication, Devices, and Applications
TL;DR: This article attempts to critically review the current state-of-arts with respect to materials, fabrication techniques, and structural design of devices as well as applications of the fiber-based wearable electronic products.
References
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Journal ArticleDOI
Core-Brominated Tetraazaperopyrenes as n-Channel Semiconductors for Organic Complementary Circuits on Flexible Substrates
Sonja Geib,Ute Zschieschang,Marcel Gsänger,Matthias Stolte,Frank Würthner,Hubert Wadepohl,Hagen Klauk,Lutz H. Gade +7 more
TL;DR: In this paper, the TAPP derivatives are synthesized by reacting known unsubstituted TAPPs with bromine in fuming sulphuric acid, and their electrochemical properties are studied in detail by cyclic voltammetry and modelled with density functional theory (DFT) methods.
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New Opportunities for Organic Electronics and Bioelectronics: Ions in Action
Giuseppe Tarabella,Farzaneh Mahvash Mohammadi,Nicola Coppedè,Francesco Barbero,Salvatore Iannotta,Clara Santato,Fabio Cicoira +6 more
TL;DR: In this paper, the coupling of ionic and electronic transport in organic electronic devices, focusing on electrolyte-gated transistors, is discussed, where the authors show that such transistors can be operated at low electrical bias and permit unprecedented charge carrier densities within the transistor channel.