Tunable Colors in Opals and Inverse Opal Photonic Crystals

Aguirre, Carlos I.; Reguera, E.; Stein, Andreas

doi:10.1002/adfm.201000143

Cited by 528 publications

(421 citation statements)

References 113 publications

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“…In particular, the interconnected periodic array of pores in the inverse opal structure, synthesized from a sacrificial colloidal crystal template, has made it a viable bottom-up materials candidate for applications in photonics, [1][2][3][4] tissue engineering, 5 sensing, 6,7 and catalysis. 8,9 However, in order to utilize these structures as functional materials, tuning the inverse opal composition is extremely important.…”

Section: Introductionmentioning

confidence: 99%

Three-Phase Co-assembly: In Situ Incorporation of Nanoparticles into Tunable, Highly Ordered, Porous Silica Films

et al. 2013

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We present a reproducible, one-pot colloidal co-assembly approach that results in large-scale, highly-ordered porous silica films with embedded, uniformly-distributed, accessible gold nanoparticles. The unique coloration of these inverse opal films combines iridescence with plasmonic effects. The coupled optical properties are easily tunable either by changing the concentration of added nanoparticles to the solution before assembly or by localized growth of the embedded Au nanoparticles upon exposure to tetrachloroauric acid solution, after colloidal template removal. The presence of the selectively absorbing particles furthermore enhances the hue and saturation of the inverse opals color by suppressing incoherent diffuse scattering. The composition and optical properties of these films are demonstrated to be locally tunable using selective functionalization of the doped opals.

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Section: Introductionmentioning

confidence: 99%

Three-Phase Co-assembly: In Situ Incorporation of Nanoparticles into Tunable, Highly Ordered, Porous Silica Films

et al. 2013

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“…From the viewpoint of bottom-up nanotechnology, nanostructured colloidal crystals can be fabricated using a simple and low cost process. A large number of research papers on opal photonic crystals were published in the past decade, as reviewed in references [53][54][55][56][57][58][59][60].…”

Section: Crystalline Diffractionmentioning

confidence: 99%

“…Inverse opal hydrogels have potential applications in chemical sensors [73,74], and elastomer inverse opal films can be used for mechanical fingerprinting [75]. Tunable structural color in inverse opal photonic crystals was overviewed in [53,56,57].…”

Section: Crystalline Diffractionmentioning

confidence: 99%

Tunable structural color in organisms and photonic materials for design of bioinspired materials

Fudouzi

2011

Science and Technology of Advanced Materials

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In this paper, the key topics of tunable structural color in biology and material science are overviewed. Color in biology is considered for selected groups of tropical fish, octopus, squid and beetle. It is caused by nanoplates in iridophores and varies with their spacing, tilting angle and refractive index. These examples may provide valuable hints for the bioinspired design of photonic materials. 1D multilayer films and 3D colloidal crystals with tunable structural color are overviewed from the viewpoint of advanced materials. The tunability of structural color by swelling and strain is demonstrated on an example of opal composites.

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“…Color for camouflage or attracting food based on nanostructure has been widely studied [96]. The gratinglike nanostructures in beautiful butterfly wings [90,97] and the inorganic photonic crystals in minerals such as opal can produce very similar bright colors with narrow color spread [98]. Another feature of some natural nanostructures is sharp color shifts with viewing angle, which has already been mimicked in polymeric nanoparticles arrayed into a photonic crystal lattice [99] and ultrathin two-layer coatings on an Al flake [79,80].…”

Section: Mimicking Natural Nanostructuresmentioning

confidence: 99%

Nanophotonics-enabled smart windows, buildings and wearables

Smith¹,

Gentle²,

Arnold³

et al. 2016

Nanophotonics

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Design and production of spectrally smart windows, walls, roofs and fabrics has a long history, which includes early examples of applied nanophotonics. Evolving nanoscience has a special role to play as it provides the means to improve the functionality of these everyday materials. Improvement in the quality of human experience in any location at any time of year is the goal. Energy savings, thermal and visual comfort indoors and outdoors, visual experience, air quality and better health are all made possible by materials, whose "smartness" is aimed at designed responses to environmental energy flows. The spectral and angle of incidence responses of these nanomaterials must thus take account of the spectral and directional aspects of solar energy and of atmospheric thermal radiation plus the visible and color sensitivity of the human eye. The structures required may use resonant absorption, multilayer stacks, optical anisotropy and scattering to achieve their functionality. These structures are, in turn, constructed out of particles, columns, ultrathin layers, voids, wires, pure and doped oxides, metals, polymers or transparent conductors (TCs). The need to cater for wavelengths stretching from 0.3 to 35 µm including ultraviolet-visible, near-infrared (IR) and thermal or Planck radiation, with a spectrally and directionally complex atmosphere, and both being dynamic, means that hierarchical and graded nanostructures often feature. Nature has evolved to deal with the same energy flows, so biomimicry is sometimes a useful guide.

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Tunable Colors in Opals and Inverse Opal Photonic Crystals

Cited by 528 publications

References 113 publications

Three-Phase Co-assembly: In Situ Incorporation of Nanoparticles into Tunable, Highly Ordered, Porous Silica Films

Three-Phase Co-assembly: In Situ Incorporation of Nanoparticles into Tunable, Highly Ordered, Porous Silica Films

Tunable structural color in organisms and photonic materials for design of bioinspired materials

Nanophotonics-enabled smart windows, buildings and wearables

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