title: Synthesis of variable-aspect-ratio, single-crystalline ZnO nanostructures.
abstract: Variable-aspect-ratio (length/diameter), one-dimensional (1-D) ZnO nanostructures (nanorods and nanowires) were prepared in alcohol/water solution by reacting a Zn2+ precursor with an organic weak base, tetramethylammonium hydroxide (Me4NOH). The effect of the experimental parameters (temperature, base concentration, reaction time, and water content) on nucleation, growth, and the final morphology of the ZnO nanostructures was investigated. The low-temperature syntheses (75-150 degrees C) yielded aspect ratios of the 1-D ZnO nanostructures that depended on the water content. The individual ZnO nanorods and nanowires were determined to be perfect, single crystals with their c axes as the primary growth direction.
authors.affiliation: Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599-3290, USA.
authors.forename: Bin
authors.initials: B
authors.lastname: Cheng
authors.forename: Wensheng
authors.initials: W
authors.lastname: Shi
authors.forename: Joette M
authors.initials: JM
authors.lastname: Russell-Tanner
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Edward T
authors.initials: ET
authors.lastname: Samulski
mesh_terms: D000438:Alcohols / Q000737:chemistry; D003460:Crystallization; D049329:Nanostructures / Q000737:chemistry*; D010316:Particle Size; D014867:Water / Q000737:chemistry; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D000438:Alcohols; D014867:Water; D015034:Zinc Oxide