Patterning of a Colloidal Crystal Film on a Modified Hydrophilic and Hydrophobic Surface This work was supported in part by the Japan Society for the Promotion of Science and the Kanagawa Prefecture Joint-Research Project from the Regional Intensive, Japan Science and Technology Corporation.

Gu, Zhongze; Fujishima, Akira; Sato, Osamu

doi:10.1002/1521-3773(20020617)41:12<2067::aid-anie2067>3.0.co;2-z

Cited by 74 publications

(25 citation statements)

References 9 publications

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“…To realize optimal properties, such crystals must be patterned in a controlled and spatially organized manner. Most techniques form colloidal crystals in desired geometries via directed self‐assembly or using external stimuli based on electrostatics, topography,339 or surface energy 340. Soft lithography methods utilize microfluidic channels to physically confine colloids in the desired configuration.…”

Section: Colloidsmentioning

confidence: 99%

Transfer Printing Techniques for Materials Assembly and Micro/Nanodevice Fabrication

et al. 2012

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Transfer printing represents a set of techniques for deterministic assembly of micro-and nanomaterials into spatially organized, functional arrangements with two and three-dimensional layouts. Such processes provide versatile routes not only to test structures and vehicles for scientific studies but also to high-performance, heterogeneously integrated functional systems, including those in flexible electronics, three-dimensional and/or curvilinear optoelectronics, and bio-integrated sensing and therapeutic devices. This article summarizes recent advances in a variety of transfer printing techniques, ranging from the mechanics and materials aspects that govern their operation to engineering features of their use in systems with varying levels of complexity. A concluding section presents perspectives on opportunities for basic and applied research, and on emerging use of these methods in high throughput, industrial-scale manufacturing.

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Section: Colloidsmentioning

confidence: 99%

Transfer Printing Techniques for Materials Assembly and Micro/Nanodevice Fabrication

et al. 2012

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“…Various clever techniques have been developed for the preparation of patterns by selective ultraviolet (UV) exposure via photomasks. Substrates with wettability that can be controlled by adjusting the UV dosing were fi rst used to selectively deposit colloids onto the hydrophilic area of the substrate [45]. A hydrophobic surface composed of fl uoroalkylsilanes on a titania fi lm was found to exhibit a transition in water drop contact angle from 100° to 0° as a result of UV exposure owing to the decomposition of fl uoroalkylsilane and the creation of surface oxygen vacancies through the photocatalytic eff ects of titania.…”

Section: Structural Color-based Display Devicesmentioning

confidence: 99%

Self-assembled colloidal structures for photonics

et al. 2011

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A s dielectric structures with a submicrometer length scale can interact strongly with light, various remarkable optical responses can be designed and tailored depending on the types and parameters of their structures. Over the past few decades, the unusual optical properties of the periodic dielectric structures called photonic crystals have been investigated intensively [1]. Many research groups have endeavored to engineer the optical properties of photonic crystals, including photonic bandgaps, 'slow' photons, negative refraction and other properties, or to use them in practical applications. Two-dimensional (2D) structures, which are mostly prepared by conventional lithographic processes, were demonstrated initially, in which total internal refl ections were adopted for confi ning the light in a nonperiodic third direction, and their use has been investigated in some limited applications [2]. Th ree-dimensional (3D) structures have also been investigated intensively because of their complete photonic bandgaps in certain structures, a critical property for controlling light in 3D space. Research on such structures has been supported by the recent development of facile fabrication methods, including the selfassembly of simple monodisperse particles, also known as colloidal self-assembly [3], block copolymer self-assembly [4], the auto-cloning process [5] and holographic lithography [6]. Of these methods, colloidal self-assembly is the most promising for the low-cost production of 2D and 3D photonic crystals over large areas or with various shapes [7,8]. Schematic diagrams of the basic colloidal crystal structure along with inverse and short-range-ordered scattering structures for photonic applications are shown in Figure 1. Disordered dielectric structures of monodisperse particles called photonic glasses have begun to be investigated as another class of photonic nanostructures that can manifest some unusual optical phenomena such as random lasing, strong light localization and long-range intensity correlations. In this review article, we describe self-assembled colloidal photonic nanostructures in brief and summarize recent achievements in the fi eld of colloidal photonic nanostructures and their applications. Fabrication of photonic nanostructures by colloidal assembly Colloidal crystalsSince Vanderhoff 's serendipitous discovery of a synthetic method for preparing monodisperse polymer colloids [9], the method has been extended to the preparation of a variety of polymeric colloids and also to the processing of inorganic colloidal particles such as silica, titania and iron oxide. As long as particles are stable in liquid and their size distribution is suffi ciently narrow, they can be crystallized in a facecentered cubic (fcc) lattice by increasing their volume fraction through any concentration process, such as controlled evaporation, sedimentation or fi ltration. In general, the interparticle forces can be described by summing over the various potentials from diff erent origins, including intermolecular for...

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“…Surfaces with controllable wettability are of great significance in chemistry, biology, materials science and nanotechnology, especially in microfluidics, bioarrays, and the fabrication of nanostructures . Biological organisms smartly control their surface wettability on multiscale structures to help them survive in harsh environments.…”

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confidence: 99%

Efficient Water Collection on Integrative Bioinspired Surfaces with Star‐Shaped Wettability Patterns

et al. 2014

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Patterning of a Colloidal Crystal Film on a Modified Hydrophilic and Hydrophobic Surface This work was supported in part by the Japan Society for the Promotion of Science and the Kanagawa Prefecture Joint-Research Project from the Regional Intensive, Japan Science and Technology Corporation.

Cited by 74 publications

References 9 publications

Transfer Printing Techniques for Materials Assembly and Micro/Nanodevice Fabrication

Transfer Printing Techniques for Materials Assembly and Micro/Nanodevice Fabrication

Self-assembled colloidal structures for photonics

Efficient Water Collection on Integrative Bioinspired Surfaces with Star‐Shaped Wettability Patterns

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