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Nat Commun. 2015 Aug 24;6:8011. doi: 10.1038/ncomms9011.

A chameleon-inspired stretchable electronic skin with interactive colour changing controlled by tactile sensing.

Author information

1
Department of Chemical Engineering, Stanford University, Stanford, California 94305, USA.
2
Department of Electrical Engineering, Stanford University, Stanford, California 94305, USA.
3
Materials Science and Engineering, Stanford University, Stanford, California 94305, USA.

Abstract

Some animals, such as the chameleon and cephalopod, have the remarkable capability to change their skin colour. This unique characteristic has long inspired scientists to develop materials and devices to mimic such a function. However, it requires the complex integration of stretchability, colour-changing and tactile sensing. Here we show an all-solution processed chameleon-inspired stretchable electronic skin (e-skin), in which the e-skin colour can easily be controlled through varying the applied pressure along with the applied pressure duration. As such, the e-skin's colour change can also be in turn utilized to distinguish the pressure applied. The integration of the stretchable, highly tunable resistive pressure sensor and the fully stretchable organic electrochromic device enables the demonstration of a stretchable electrochromically active e-skin with tactile-sensing control. This system will have wide range applications such as interactive wearable devices, artificial prosthetics and smart robots.

PMID:
26300307
PMCID:
PMC4560774
DOI:
10.1038/ncomms9011
[Indexed for MEDLINE]
Free PMC Article

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