Issue 8, 2011
From the journal:

Physical Chemistry Chemical Physics

Auger recombination dynamics in hybrid silica-coated CdTe nanocrystals†

Gabriel Sagarzazu,a   Yoichi Kobayashi,a   Norio Murase,b   Ping Yangb  and  Naoto Tamai*a  

* Corresponding authors

a Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
E-mail: tamai@kwansei.ac.jp

b Health Research Institute, National Institute of Advanced Industrial Science and Technology, Midorigaoka, Ikeda-city, Osaka 563-8577, Japan

Abstract

CdTe quantum dots coated with a silica layer containing CdS-like clusters exhibit intense photoluminescence and a spectral red-shift. Biexciton Auger recombination of these particles is examined by transient absorption spectroscopy. A lengthening of the Auger recombination lifetime by a factor of ∼3.5 in the presence of the CdS-like clusters is observed and may contribute to the good PL properties of these nanostructures.

Graphical abstract: Auger recombination dynamics in hybrid silica-coated CdTe nanocrystals

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Article information

DOI
https://doi.org/10.1039/C0CP01957G
Article type
Communication
Submitted
28 Sep 2010
Accepted
21 Dec 2010
First published
14 Jan 2011

Phys. Chem. Chem. Phys., 2011,13, 3227-3230

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Auger recombination dynamics in hybrid silica-coated CdTe nanocrystals

G. Sagarzazu, Y. Kobayashi, N. Murase, P. Yang and N. Tamai, Phys. Chem. Chem. Phys., 2011, 13, 3227 DOI: 10.1039/C0CP01957G

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