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An ultra-lightweight design for imperceptible plastic electronics.
Nature 2013; 499(7459):458-63Nat

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.

Authors+Show Affiliations

The University of Tokyo, Electrical and Electronic Engineering and Information Systems, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. martin@ntech.t.u-tokyo.ac.jpNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23887430

Citation

Kaltenbrunner, Martin, et al. "An Ultra-lightweight Design for Imperceptible Plastic Electronics." Nature, vol. 499, no. 7459, 2013, pp. 458-63.
Kaltenbrunner M, Sekitani T, Reeder J, et al. An ultra-lightweight design for imperceptible plastic electronics. Nature. 2013;499(7459):458-63.
Kaltenbrunner, M., Sekitani, T., Reeder, J., Yokota, T., Kuribara, K., Tokuhara, T., ... Someya, T. (2013). An ultra-lightweight design for imperceptible plastic electronics. Nature, 499(7459), pp. 458-63. doi:10.1038/nature12314.
Kaltenbrunner M, et al. An Ultra-lightweight Design for Imperceptible Plastic Electronics. Nature. 2013 Jul 25;499(7459):458-63. PubMed PMID: 23887430.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - An ultra-lightweight design for imperceptible plastic electronics. AU - Kaltenbrunner,Martin, AU - Sekitani,Tsuyoshi, AU - Reeder,Jonathan, AU - Yokota,Tomoyuki, AU - Kuribara,Kazunori, AU - Tokuhara,Takeyoshi, AU - Drack,Michael, AU - Schwödiauer,Reinhard, AU - Graz,Ingrid, AU - Bauer-Gogonea,Simona, AU - Bauer,Siegfried, AU - Someya,Takao, PY - 2013/02/28/received PY - 2013/05/14/accepted PY - 2013/7/27/entrez PY - 2013/7/28/pubmed PY - 2013/8/14/medline SP - 458 EP - 63 JF - Nature JO - Nature VL - 499 IS - 7459 N2 - 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. SN - 1476-4687 UR - https://www.unboundmedicine.com/medline/citation/23887430/An_ultra_lightweight_design_for_imperceptible_plastic_electronics_ L2 - https://doi.org/10.1038/nature12314 DB - PRIME DP - Unbound Medicine ER -