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Superlattices with non-spherical building blocks

Paper ID Volume ID Publish Year Pages File Format Full-Text
32280 44919 2010 22 PDF Available
Title
Superlattices with non-spherical building blocks
Abstract

SummarySelf-assembly of nanocrystals has been a subject of comprehensive studies including preparation, characterization and manipulation. In this paper, we summarize recent research reports in self-assembled superlattices consisting of non-spherical nanocrystals such as nanocubes, nanooctahedra, nanorods and nanoplates, and discuss their superstructures. Compared with spherical nanocrystals which are randomly oriented when being assembled into a superlattice, the non-spherical nanocrystals can form more abundant and complex superlattices and may offer certain enhanced characteristics with their anisotropic assemblies. In each type of faceted shape, synthesis, superlattice structure as well as formation conditions are discussed. With a brief review of novel properties generated from non-spherical superlattices, this article aims to provide an outline of various shape-induced superlattices that could serve as potential new device metamaterials in future.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (105 K)Download as PowerPoint slideResearch highlights▶ Non-spherical nanocrystals display much more variety of assembly patterns. ▶ Nanocubes usually pack in “simple cubic superlattice” pattern. ▶ The assembly patterns of nanooctahedra, nanoplates, and nanorods are complex and sensitive. ▶ Novel properties are being developed for these non-spherical superlattices.

Keywords
Superlattice; Supercrystal; Self-assembly; Non-spherical nanocrystal; Nanocube; Nanooctahedron
First Page Preview
Superlattices with non-spherical building blocks
Publisher
Database: Elsevier - ScienceDirect
Journal: - Volume 5, Issue 5, 2010, Pages 390–411
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering