Anti-reflective biomimetic nanostructures formed by 2D arrays of silica colloidal particles via self-assembly using sublimation, polymer solidification, and thermal fusion

Kuno, Goshi; Sakaguchi, Kota

doi:10.1016/j.apsusc.2021.150406

Cited by 4 publications

(3 citation statements)

References 43 publications

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“…Kuno and Sakaguchi developed 2D silica colloidal particle array nanostructures on glass that mimic the nano‐protrusions of the moth eye. [ 80 ] These nano‐protrusions give rise to a graded refractive index at the glass surface that contributes to excellent light transmission. Core‐shell SiO 2 @PMMA nanospheres, with average diameter of ≈120 nm, were synthesized via free radical polymerization of methyl methacrylate (MMA) on 3‐methacryloxypropyltrimethoxysilane (MPTMS) functionalized commercial SiO 2 nanospheres.…”

Section: Anti‐reflective Core‐shell Micro‐/nano‐structuresmentioning

confidence: 99%

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Core‐Shell Micro‐ and Nano‐Structures for The Modification of Light‐Surface Interactions

Yeo,

Yu Tan

et al. 2023

Advanced Optical Materials

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Controlling how a material interacts with light is key to optimizing its optical properties to fit a desired function or application. The most straightforward approach is to chemically or physically modify the surface exposed to incident light. An effective method of surface modification is based on the addition of core‐shell structures at the surface. Of particular importance to many technological applications are core‐shell structures with dimensions comparable to the wavelengths of light extending from the UV up to the near‐IR region of the electromagnetic spectrum, which coincides with the major part of the solar spectrum. Surface modification approaches to tailor the optical properties of materials in this range of wavelengths are increasingly relevant in the context of materials and devices used in sustainable energy applications, such as solar cells and heat‐reflective paints. These materials are useful to mitigate the current energy and climate crises by allowing for enhanced energy harvesting and improved thermal management, respectively. Here, recent progress in the fabrication and application of core‐shell micro‐/nano‐structures for the modification of light interaction with surfaces is highlighted. Some limitations and future directions for the design of core‐shell materials are also discussed.

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Section: Anti‐reflective Core‐shell Micro‐/nano‐structuresmentioning

confidence: 99%

“…b,c) SEM images showing the arrangement of the SiO 2 @PMMA core-shell nanoparticles on the glass substrate b) with thermal treatment and c) without thermal treatment. Reproduced with permission [80]. Copyright 2021, Elsevier.…”

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confidence: 99%

Core‐Shell Micro‐ and Nano‐Structures for The Modification of Light‐Surface Interactions

Yeo,

Yu Tan

et al. 2023

Advanced Optical Materials

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“…Since the end of the last century, , the development of the self-assembly of colloidal nanospheres makes the water-surface self-assembly technology unprecedentedly close to industrial application. The preparation of two-dimensional (2D) colloidal crystals have been realized through the self-assembly of metal particles like gold particles, , SiO 2 particles, , and polystyrene particles (PSPs) . The 2D colloidal crystals are ideally suited for the study of phenomena in surface chemistry, optics, crystallography, and other studies.…”

Section: Introductionmentioning

confidence: 99%

Spreading Solution Additives Governs the Quality of Polystyrene Particle-Based Two-Dimensional Opals

et al. 2023

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Two-dimensional polystyrene sphere opals are important materials for nanotechnology applications and fundamental nanoscience research. They are a facile and inexpensive nanofabrication tool, but the quality factor of these opals has drastic differences between reports. Additives like ethanol, ions, and organic molecules in the aqueous particle spreading solution are known to affect the quality factor and growth efficiency of the produced opals. However, a systematic study on the effect and optimization of some of the most effective additives has not been reported until now. Here, we investigate the influence of additives on the growth efficiency and quality factor of such monolayers formed at the air−water interface without the use of a Langmuir− Blodgett trough. The additives induced large variations in the monolayer quality factor and growth efficiency, and we found that the ideal additive content of the spreading agents is 30 wt % < c ethanol < 70 wt %, 0 < c Hd 2 SOd 4 < 30.5 mM, and 0 < c sty < 255.0 mM. This study provides a guideline for the rational composition and additive content of the spreading solution to obtain high-quality two-dimensional opals for further applications in nanofabrication and photonics and will enable researchers and application engineers to produce standardized nanofabrication materials.

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Heat: A powerful tool for colloidal particle shaping

Lotito,

Zambelli

2024

Advances in Colloid and Interface Science

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Anti-reflective biomimetic nanostructures formed by 2D arrays of silica colloidal particles via self-assembly using sublimation, polymer solidification, and thermal fusion

Cited by 4 publications

References 43 publications

Core‐Shell Micro‐ and Nano‐Structures for The Modification of Light‐Surface Interactions

Core‐Shell Micro‐ and Nano‐Structures for The Modification of Light‐Surface Interactions

Spreading Solution Additives Governs the Quality of Polystyrene Particle-Based Two-Dimensional Opals

Heat: A powerful tool for colloidal particle shaping

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