摘要
The procedure reported here allows for the size and shape control of CdTe nanowires by means of colloidal chemistry. Thus, ultrathin, straight, saw-tooth-like and one-sided branched nanowires with zinc blende structures could be synthesized. Their formation does not require any catalyst and is most likely due to the oriented attachment of nanoparticles formed in the beginning of the reaction. The use of oleylamine as a solvent turned out to be crucial in order to achieve CdTe nanowires. The reaction between oleic acid and oleylamine in the presence of CdO proved to be essential, not only to activate the Cd precursor but also to provide reaction conditions facilitating nanowire formation by oriented attachment.
这里报导的过程允许借助于胶体的化学的 CdTe nanowires 的尺寸和形状控制。因此,笔直地,有锌闪锌矿的 saw-tooth-like 和片面分叉的 nanowires 组织的 ultrathin 能被综合。他们的形成不要求任何催化剂并且由于在反应的开始形成的 nanoparticles 的面向的附件是最可能的。溶剂结果关键以便完成 CdTe nanowires 的 oleylamine 的使用。在油的酸和 oleylamine 之间的反应面对 CdO 证明了必要,不是仅仅调节激活 Cd 先锋而且提供反应由面向的附件便于 nanowire 形成。