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

Ho-Hsiu Chou, Amanda Nguyen, Alex Chortos, John W.F. To, Chien Lu, Jianguo Mei, Tadanori Kurosawa, Won-Gyu Bae, Jeffrey B.-H. Tok and Zhenan Bao ()
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Ho-Hsiu Chou: Stanford University
Amanda Nguyen: Stanford University
Alex Chortos: Materials Science and Engineering, Stanford University
John W.F. To: Stanford University
Chien Lu: Stanford University
Jianguo Mei: Stanford University
Tadanori Kurosawa: Stanford University
Won-Gyu Bae: Stanford University
Jeffrey B.-H. Tok: Stanford University
Zhenan Bao: Stanford University

Nature Communications, 2015, vol. 6, issue 1, 1-10

Abstract: 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.

Date: 2015
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DOI: 10.1038/ncomms9011

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