Gao Feng, Lu Qingyi
Nanoscale Res Lett. 2009 Jan 27;4(4):371-376. doi: 10.1007/s11671-009-9256-3.
In this article, we report the synthesis of branched single crystal CdS nanowires. This branched CdS nanostructure is prepared by a simple surfactant-directing method, which is of particular interest as it uses readily available reagents and provides a convenient route to high-yield single crystal nanowires but with branched shape. These branched nanowires have an average diameter of about 40 nm and length up to several micrometers. A possible mechanism has been proposed and the addition of surfactant dodecylthiol into the two mixed-solvents would play an importance effect on the structure of the product. Based on the mechanism, by controlling the synthesis conditions, such as the ratios between the surfactant, inorganic solvent, and organic solvent, other kinds of nanostructures based on CdS nanowires were also prepared. Photoluminescence (PL) measurement reveals that the branched CdS nanowires have a strong emission at about 700 nm which might be due to its special structure.
在本文中，我们报道了分支状单晶硫化镉纳米线的合成。这种分支状硫化镉纳米结构是通过一种简单的表面活性剂导向法制备的，该方法特别引人关注，因为它使用的是易于获得的试剂，并为高产率的单晶纳米线提供了一条便捷途径，而且纳米线呈分支状。这些分支状纳米线的平均直径约为40纳米，长度可达几微米。我们提出了一种可能的机制，并且将表面活性剂十二烷基硫醇添加到两种混合溶剂中会对产物的结构产生重要影响。基于该机制，通过控制合成条件，如表面活性剂、无机溶剂和有机溶剂之间的比例，还制备了其他基于硫化镉纳米线的纳米结构。光致发光（PL）测量表明，分支状硫化镉纳米线在约700纳米处有强烈发射，这可能归因于其特殊结构。
