Controlling the drying characteristics of suspensions via colloidal interactions: Particle-scale modeling

Tatsumi, Rei; Koike, Osamu; Yamaguchi, Yukio; Tsuji, Yoshiko

doi:10.1016/j.ces.2023.118993

Chemical Engineering Science

2023

DOI: 10.1016/j.ces.2023.118993

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Controlling the drying characteristics of suspensions via colloidal interactions: Particle-scale modeling

Rei Tatsumi

Osamu Koike

Yukio Yamaguchi

et al.

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Cited by 2 publications

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Fabrication parameters affecting the structural color of colloidal films: A combined numerical investigation

Yato,

Tatsumi,

Tsuji

2023

Applied Physics Letters

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Colloidal assembly formed by drying of suspensions is expected to be applied to optical materials using their structural color resulting from the microstructure. We combine two numerical simulation techniques to investigate how the fabrication conditions of the self-assembled colloidal films affect their structural color. We first perform Langevin dynamics simulations to form colloidal films with various microstructures depending on the several fabrication parameters and then perform the finite-difference time-domain simulations of electromagnetic field analysis to calculate the structural color intensity of the obtained microstructures. To improve the structural color intensity, we show that the surface tension of the solvent should be sufficiently large so that capillary interactions exceed the interparticle adhesion by van der Waals force and furthermore that under this condition the smaller drying rate is favorable. This study suggests a guideline to design the fabrication process of colloidal films generating structural color.

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Fabrication parameters affecting the structural color of colloidal films: A combined numerical investigation

Yato,

Tatsumi,

Tsuji

2023

Applied Physics Letters

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Relationship between the Rheological Properties and Structure of Slurry Explored by Numerical Simulation

Tatsumi

2024

Funtai Kogakkaishi

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Controlling the drying characteristics of suspensions via colloidal interactions: Particle-scale modeling

Cited by 2 publications

References 52 publications

Fabrication parameters affecting the structural color of colloidal films: A combined numerical investigation

Fabrication parameters affecting the structural color of colloidal films: A combined numerical investigation

Relationship between the Rheological Properties and Structure of Slurry Explored by Numerical Simulation

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