Self-Assembly of Vertically Aligned Nanorod Supercrystals Using Highly Oriented Pyrolytic Graphite

• Published in: Nano letters Vol. 7; no. 8; pp. 2480 - 2485
• Main Authors: Ahmed, S, Ryan, Kevin M
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 01.08.2007
• Subjects: Cadmium Compounds - chemistry; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Crystallization - methods; Exact sciences and technology; Graphite - chemistry; Macromolecular Substances - chemistry; Materials science; Materials Testing; Methods of nanofabrication; Molecular Conformation; Nanocrystalline materials; Nanoscale materials and structures: fabrication and characterization; Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals; Nanotechnology - methods; Nanotubes - chemistry; Nanotubes - ultrastructure; Particle Size; Physics; Self-assembly; Structure of solids and liquids; crystallography; Sulfides - chemistry; Surface Properties; External fields; Hexagonal lattices; Self-assembly; Electric field effects; Superlattices; Cadmium sulfides; Evaporation; Nanostructured materials; Nanorod; Pyrographite
• ISSN: 1530-6984; 1530-6992
• DOI: 10.1021/nl071263v

Supercrystallization of CdS nanorods (10 nm × 25 nm) into perpendicular superlattices was obtained by controlled evaporation of a nanorod solution trapped between a smooth substrate and a block of highly oriented pyrolytic graphite (HOPG). Hexagonal oriented domains 2 μm2 in size were routinely obtained on a variety of substrates without external electric fields.