Type‐I and Type‐II Nanoscale Heterostructures Based on CdTe Nanocrystals: A Comparative Study

Abstract

The synthesis and optical properties of core/shell and core/shell/shell nanocrystals based on CdTe nanocrystals are described. The influence of the different charge-carrier separation in the CdTe/CdS nanocrystals (type-I heterostructure) and the CdTe/CdSe nanocrystals (type-II heterostructure) is examined. The behavior of CdTe/CdS/CdSe nanocrystals (see image) in comparison to two core/shell systems is also studied. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2296/2008/smll200800287_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.