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Fig. 10 | Nano Convergence

Fig. 10

From: Stretchable and reflective displays: materials, technologies and strategies

Fig. 10

(Figure reproduced from a [76], Copyright 2013, The Royal Society of Chemistry; b, c [75], Copyright 2010, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim; d, e [77], Copyright 2018, WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Electrokinetic driven 3D photonic crystals a Schematic representation of the changes in an array of charged particles under different electric fields. b Changes in reflective colors exhibited by a single device with various voltage bias. c Profiles of peak reflectance as a function of time under different DC bias excitation. d (i) A digital photo of CeO2 particles. (ii) a X-ray diffraction pattern of CeO2 particles. (iii) a TEM image of CeO2 particles. e (i) Working mechanism of the electrically tunable photonic crystals prepared from propylene carbonate solution of CeO2, SiO2, and SiO2 coated CeO2 colloidal particles. (ii) Optical microscope images for the photonic crystal under various voltages. (iii) CIE color space showing tunable range of photonic colors in different electric fields 

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