Issue 15, 2013

The interface effect on the band offset of semiconductor nanocrystals with type-I core–shell structure

Abstract

In order to pursue the interface effect on the band offset of the semiconductor nanocrystals with the type-I core–shell structure, we have established a theoretical model to elucidate the underlying mechanism based on the atomic-bond-relaxation consideration and continuum mechanics. It was found that the size-dependent interface bond-nature-factor of the core–shell nanocrystals can be deduced on the basis of the proposed model. Taking the typical CdSe–ZnSe nanostructure as an example, we showed that the theoretical results were consistent with the experimental observations. These investigations provided a useful guide in opening up the possibility to engineer nanodevices with special optoelectronic properties.

Graphical abstract: The interface effect on the band offset of semiconductor nanocrystals with type-I core–shell structure

Article information

Article type
Communication
Submitted
17 Oct 2012
Accepted
25 Feb 2013
First published
27 Feb 2013

Phys. Chem. Chem. Phys., 2013,15, 5472-5476

The interface effect on the band offset of semiconductor nanocrystals with type-I core–shell structure

Z. Zhu, G. Ouyang and G. Yang, Phys. Chem. Chem. Phys., 2013, 15, 5472 DOI: 10.1039/C3CP43667E

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