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.

中文翻译：

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受到变色龙启发的可拉伸电子皮肤，通过触觉感应控制交互式的颜色变化。

一些动物，例如变色龙和头足类动物，具有改变肤色的非凡能力。长期以来，这种独特的特性激发了科学家开发模仿这种功能的材料和设备。但是，它需要将可拉伸性，变色和触觉感测复杂地结合在一起。在这里，我们展示了一种经过全溶液处理的变色龙风格可拉伸电子皮肤（e-skin），其中可以通过改变施加的压力和施加的压力持续时间轻松地控制e-skin的颜色。这样，电子皮肤的颜色变化也可以反过来用来区分所施加的压力。伸缩性的整合，高度可调的电阻式压力传感器和完全可拉伸的有机电致变色设备，可通过触感控制演示可拉伸的电致变色活性皮肤。该系统将具有广泛的应用，例如交互式可穿戴设备，人造假肢和智能机器人。