Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy.
Nano Lett. 2010 Aug 11;10(8):3028-36. doi: 10.1021/nl101482q.
The thermal evolution of a collection of heterogeneous CdSe-Au nanosystems (Au-decorated CdSe nanorods, networks, vertical assemblies) prepared by wet-chemical approaches was monitored in situ in the transmission electron microscope. In contrast to interfaces that are formed during kinetically controlled wet chemical synthesis, heating under vacuum conditions results in distinct and well-defined CdSe/Au interfaces, located at the CdSe polar surfaces. The high quality of these interfaces should make the heterostructures more suitable for use in nanoscale electronic devices.
通过湿化学方法制备的一系列异质 CdSe-Au 纳米系统（Au 修饰的 CdSe 纳米棒、网络、垂直组装体）的热演变在透射电子显微镜中进行了原位监测。与在动力学控制的湿化学合成过程中形成的界面相比，在真空中加热会导致在 CdSe 极性表面处形成明确的 CdSe/Au 界面。这些界面的高质量应该使异质结构更适合用于纳米尺度的电子器件。
