Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 20, Pages 5853-5858Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201500273
Keywords
colloidal crystals; microparticles; multicomponent crystals; nanostructures; self-assembly
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Funding
- U.S. Dept. of Ed. GAANN PR/Award [P200A100087]
- National Science Foundation's REU [EEC-1359308, EEC-1005048]
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Colloidal crystals are interesting materials owing to their customizable photonic properties, high surface area, and analogy to chemical structures. The flexibility of these materials has been greatly enhanced through mixing particles with varying sizes, compositions, and surface charges. In this way, distinctive patterns or analogies to chemical stoichiometries are produced; however, to date, this body of research is limited to particles with nanoscale dimensions. A simple method is now presented for bottom-up assembly of non-Brownian particle mixtures to create a new class of hierarchically-ordered materials that mimic those found in nature (both in pore distribution as well as stoichiometry). Additionally, these crystals serve as a template to create particle-based inverted crystalline structures with customizable properties.
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