可变纵横比的单晶氧化锌纳米结构的合成。

Synthesis of variable-aspect-ratio, single-crystalline ZnO nanostructures.

作者信息

Cheng Bin, Shi Wensheng, Russell-Tanner Joette M, Zhang Lei, Samulski Edward T

机构信息

Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599-3290, USA.

出版信息

Inorg Chem. 2006 Feb 6;45(3):1208-14. doi: 10.1021/ic051786a.

DOI:10.1021/ic051786a

PMID:16441132

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.

摘要

通过使锌离子前驱体与有机弱碱氢氧化四甲铵（Me4NOH）在醇/水溶液中反应，制备了可变纵横比（长度/直径）的一维（1-D）氧化锌纳米结构（纳米棒和纳米线）。研究了实验参数（温度、碱浓度、反应时间和水含量）对氧化锌纳米结构的成核、生长及最终形貌的影响。低温合成（75 - 150摄氏度）得到的一维氧化锌纳米结构的纵横比取决于水含量。确定单个氧化锌纳米棒和纳米线为完美的单晶，其c轴为主要生长方向。