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

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(a) The schematic layout of interactive colour-changeable e-skin, the layout of the circuit and the photos of PSEC. (b) The absorption spectra related to the pressures. (c) The colour retention properties of ECDs. (d) The real-time absorption changes corresponding to the various applied pressures, in which each pressure was mainatined for 10 s. (e) The speed of colour saturation for different pressures, each pressure was applied till colour saturation for all cases. (f) The absorption and time versus the pressure for both the low- and high-pressure regimes.