Production of Colored Pigments with Amorphous Arrays of Black and White Colloidal Particles

Takeoka, Yukikazu; Yoshioka, Shinya; Takano, Atsushi; Arai, Shigeo; Nueangnoraj, Khanin; Nishihara, Hirotomo; Teshima, Midori; Ohtsuka, Yumiko; Seki, Takahiro

doi:10.1002/anie.201301321

Cited by 277 publications

(303 citation statements)

References 31 publications

Supporting

Mentioning

294

Contrasting

Order By: Relevance

“…3,5 Similarly, disorder introduced into CBPM can lead to angle-independent structural colors. [180][181][182][183][184][185] An example of such angle independence can be seen in Figure 8C. It should be noted that there is a blue tinge to the colors that can be produced using this method.…”

Section: Factors Affecting Optical Applicationsmentioning

confidence: 89%

“…While typically order is necessary for photonic structures, disordered colloidal structures-which still exhibit structural coloration-have also been studied. 4,82,[180][181][182] For many color applications, the iridescent structural color of photonic crystal materials is undesirable. Nature has solved this problem by incorporating disorder into its photonic structures in order to increase their angular visibility, for example in the feather shown in Figure 1A,i-ii.…”

Section: Factors Affecting Optical Applicationsmentioning

confidence: 99%

See 1 more Smart Citation

A colloidoscope of colloid-based porous materials and their uses

et al. 2016

View full text Add to dashboard Cite

Nature evolved a variety of hierarchical structures that produce sophisticated functions. Inspired by these natural materials, colloidal self-assembly provides a convenient way to produce structures from simple building blocks with a variety of complex functions beyond those found in nature. In particular, colloid-based porous materials (CBPM) can be made from a wide variety of materials. The internal structure of CBPM also has several key attributes, namely porosity on a sub-micrometer length scale, interconnectivity of these pores, and a controllable degree of order. The combination of structure and composition allow CBPM to attain properties important for modern applications such as photonic inks, colorimetric sensors, self-cleaning surfaces, water purification systems, or batteries. This review summarizes recent developments in the field of CBPM, including principles for their design, fabrication, and applications, with a particular focus on structural features and materials' properties that enable these applications. We begin with a short introduction to the wide variety of patterns that can be generated by colloidal self-assembly and templating processes. We then discuss different applications of such structures, focusing on optics, wetting, sensing, catalysis, and electrodes. Different fields of applications require different properties, yet the modularity of the assembly process of CBPM provides a high degree of tunability and tailorability in composition and structure. We examine the significance of properties such as structure, composition, and degree of order on the materials' functions and use, as well as trends in and future directions for the development of CBPM.

show abstract

Section: Factors Affecting Optical Applicationsmentioning

confidence: 89%

Section: Factors Affecting Optical Applicationsmentioning

confidence: 99%

A colloidoscope of colloid-based porous materials and their uses

et al. 2016

View full text Add to dashboard Cite

show abstract

“…The peaks in the normalized reec-tance spectra shi to longer wavelengths proportional to the SiO 2 particle size. 33 The sample prepared using SiO 2 particles with a diameter of 350 nm has blue color. There are two peaks in the reectance spectrum of this lm (Fig.…”

Section: Inuence Of the Size Of Sio 2 Particles On Lm Colormentioning

confidence: 99%

Structurally colored coating films with tunable iridescence fabricated via cathodic electrophoretic deposition of silica particles

et al. 2018

Self Cite

View full text Add to dashboard Cite

In recent years, colloidal arrays of submicrometer-sized monodisperse particles used as structurally colored coatings have drawn great attention due to their non-bleaching properties and low impact on human health and the environment. In this paper, structurally colored coating films were fabricated using monodisperse SiO 2 particles via the cathodic electrophoretic deposition (EPD) technique. The addition of a strong polycation, poly(diallyldimethylammonium chloride) (PDDA), enables the cathodic EPD of SiO 2 particles and carbon black (CB) additives. Optimizing the quantities of PDDA and CB results in the appearance of vivid structural color from the coating films. The arrangement of the particle array is controllable by varying the pH of the water added to the coating sols for EPD. Structurally colored coating films with and without iridescence, i.e., angular dependence, can be fabricated on demand by a simple operation of the EPD process. In addition, the coating film prepared by cathodic EPD displayed high abrasion resistance because PDDA acts not only as a charge control agent but also as a binder.

show abstract

“…49,50 The scattering in the photonic structures arises from Rayleigh scattering off the nanoparticle dopants or Mie scattering from lattice imperfections. 49,50 The amorphous arrangement inside the PC assemblies with only short-range orders also suppresses iridescence, 46,47,51−53 and angle-independent colors are realized by a single scattering process with wavelength-specific constructive interference. 46,47,51−53 Otherwise, the curvature of the microellipsoidal PC assemblies played a certain role in suppressing iridescence as well by inducing only small shifts of the stopbands of the ordered surface layers at varying detection angles, 36,54 which could be observed by the reflectance spectra of PC assemblies without Fe 3 O 4 nanoparticle introduction ( Figure S12, SI).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Controllable Fabrication of Noniridescent Microshaped Photonic Crystal Assemblies by Dynamic Three-Phase Contact Line Behaviors on Superhydrophobic Substrates

Zhou

Yang

et al. 2015

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Enormous research efforts have been made to self-assemble monodisperse colloidal spheres into special microscopic shapes (e.g., superbeads, superballs, or doughnuts), due to their widespread applications in sensors, displays, separation processes, catalysis, etc. But realization of photonic crystal (PC) assemblies with both facile microshape control and a noniridescent property is still a tough task. Herein, we demonstrate the controllable fabrication of noniridescent microshaped PC assemblies by evaporation-induced self-assembly inside aqueous colloidal dispersion droplet templates on superhydrophobic substrates. The microshapes of the PC assemblies could be tuned from microbeads to microwells to microellipsoids by manipulating the dynamic behaviors of the three-phase contact line of the colloidal droplets during the evaporating process. Structure characterization shows that the PC assemblies are crack-free, consisting of an ordered periodic arrangement of colloidal spheres in the surface layers and amorphous inner layers. The incorporation of black Fe3O4 nanoparticles into the PC assembly lattice is demonstrated to endow the PC assemblies with enhanced noniridescent structural colors with wide-viewing angles and a superparamagnetic property. The crack-free noniridescent PC assemblies with controlled microshapes have promising applications in the fields of nontoxic, nonbleaching pigments and energy-efficient full-color display pixels, and their facile fabrication procedure may provide guidance for creating new types of substructured colloidal particles.

show abstract

Production of Colored Pigments with Amorphous Arrays of Black and White Colloidal Particles

Cited by 277 publications

References 31 publications

A colloidoscope of colloid-based porous materials and their uses

A colloidoscope of colloid-based porous materials and their uses

Structurally colored coating films with tunable iridescence fabricated via cathodic electrophoretic deposition of silica particles

Controllable Fabrication of Noniridescent Microshaped Photonic Crystal Assemblies by Dynamic Three-Phase Contact Line Behaviors on Superhydrophobic Substrates

Contact Info

Product

Resources

About