ACS Applied Electronic Materials · 2021 · 25 citations · 26 references
Natural SciencesMaterials EngineeringMaterials ScienceMaterials ChemistryNanomaterialsOptical MaterialsElectrochromic MaterialsElectrode MaterialsOptical Properties Of SolidsPhotonic CrystalsPhotonic MaterialsThin Film Optical PropertiesContrastCore-shell NanostructuresCrystal Surface MorphologyElectrochromic DevicesInorganic Electrochromic MaterialsNanocomposite FilmsNanostructured Electrochromic MaterialsPrussian Blue Electrochromics
SiO2 photonic crystals are employed as a template to prepare composite films of Prussian blue (PB) on a SiO2 photonic crystal (PB@SiO2) by a facile method. The surface morphology and crystallinity are characterized, and the optical, electrochemical, and electrochromic properties are measured. Compared with the pure PB film, the redox ability of the PB@SiO2 composite film increases. In addition, the composite displays a maximum contrast as high as 49.1%, accelerated coloration, and bleaching response times of 3.4 and 6.1 s relative to those of the pure PB. Moreover, the cyclic stability of the PB@SiO2 composite film is also enhanced. Results show that the electrochromic function can be significantly improved by judicious construction of the core–shell structure of PB@SiO2, which may open an avenue to fabricate high-performance electrochromic composites and facilitate their applications.
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Three-dimensional control of light in a two-dimensional photonic crystal slab
Edmond Chow, Shawn-Yu Lin, Steven G. Johnson et al. · Nature · 2000 · 374 citations