期刊
JOURNAL OF PHYSICAL CHEMISTRY B
卷 107, 期 30, 页码 7486-7491出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp027485t
关键词
-
Colloidally prepared CdS/HgS/CdS quantum dot quantum well nanocrystals and CdS/HgS/CdS/HgS/CdS double quantum well nanocrystals stabilized with polyphosphates have been investigated by photoelectron spectroscopy with tuneable synchrotron radiation. High-resolution spectra reveal in addition to a bulk species also a surface environment for Cd, whereas different S species could not be resolved. Although not expected for the ideal structure model, Hg occurs in two distinct environments. The total amount of Hg giving evidence for sample inhomogeneities is of the order of 10%. Furthermore, to some extent, the XPS experiments allowed characterization of the onion like structure of the quantum dot quantum well nanocrystals. A method for layer thickness determination previously developed for core shell nanocrystals is extended to the more complex case of quantum dot quantum well structures.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据