Effect of Particles of Irregular Size on the Microstructure and Structural Color of Self-Assembled Colloidal Crystals

Since the 1920s, packing arguments have been used to rationalize crystal structures in systems ranging from atomic mixtures to colloidal crystals. Packing arguments have recently been applied to complex nanoparticle structures, where they often, but not always, work. We examine when, if ever, packing is a causal mechanism in hard particle approximations of colloidal crystals. We investigate three crystal structures composed of their ideal packing shapes. We show that, contrary to expectations, the ordering mechanism cannot be packing, even when the thermodynamically self-assembled structure is the same as that of the densest packing. We also show that the best particle shapes for hard particle colloidal crystals at any finite pressure are imperfect versions of the ideal packing shape.

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Two-Dimensional Nematic Colloidal Crystals Self-Assembled by Topological Defects

Science ◽

10.1126/science.1129660 ◽

2006 ◽

Vol 313 (5789) ◽

pp. 954-958 ◽

Cited By ~ 561

Author(s):

I. Musevic

Keyword(s):

Colloidal Crystals ◽

Topological Defects ◽

Two Dimensional ◽

Self Assembled

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Self-assembled angle-independent plasmonic structural color paint

Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIV ◽

10.1117/12.2584182 ◽

2021 ◽

Author(s):

Pablo Cencillo-Abad ◽

Daniel Franklin ◽

Pamela Mastranzo-Ortega ◽

Debashis Chanda

Keyword(s):

Structural Color ◽

Self Assembled

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In-situ self-assembled colloidal crystals within microchannels using one step stamping for direct seawater desalination by ion concentration polarization

2012 IEEE 25th International Conference on Micro Electro Mechanical Systems (MEMS) ◽

10.1109/memsys.2012.6170399 ◽

2012 ◽

Author(s):

Eunpyo Choi ◽

Kilsung Kwon ◽

Seung Jun Lee ◽

Daejoong Kim ◽

Jungyul Park

Keyword(s):

Concentration Polarization ◽

Colloidal Crystals ◽

Ion Concentration ◽

Seawater Desalination ◽

Ion Concentration Polarization ◽

One Step ◽

Self Assembled

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Control of plasmonic fluorescence enhancement on self-assembled 2-D colloidal crystals

Journal of Materials Chemistry C ◽

10.1039/c5tc00464k ◽

2015 ◽

Vol 3 (24) ◽

pp. 6185-6191 ◽

Cited By ~ 17

Author(s):

Wei Hong ◽

Yu Zhang ◽

Lin Gan ◽

Xudong Chen ◽

Mingqiu Zhang

Keyword(s):

Conjugated Polymers ◽

Systematic Study ◽

Fluorescence Enhancement ◽

Colloidal Crystals ◽

Excitation Wavelength ◽

Two Dimensional ◽

Self Assembled

A systematic study of the excitation wavelength–LSPR-based fluorescence enhancement of conjugated polymers on Ag-capped two-dimensional colloidal crystals.

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