Highly stable CuInS2@ZnS:Al core@shell quantum dots: the role of aluminium self-passivation

Pinhua Rao; Wei Yao; Zhichun Li; Long Kong; Wenqi Zhang; Liang Li

doi:10.1039/C5CC01137J

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Highly stable CuInS₂@ZnS:Al core@shell quantum dots: the role of aluminium self-passivation†

Pinhua Rao,‡^a Wei Yao,‡^a Zhichun Li,^b Long Kong,^b Wenqi Zhang^a and Liang Li*^b

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* Corresponding authors

^a School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, P. R. China

^b School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
E-mail: liangli117@sjtu.edu.cn
Tel: +86-21-54747567

Abstract

A simple approach was introduced to enhance the photostability of CuInS₂@ZnS core@shell quantum dots (QDs) by doping aluminium into the ZnS shell. Aluminium in the as-prepared QDs was oxidized to Al₂O₃, which formed a passivation oxide layer that effectively prevents photo-degradation of QDs during long-term light irradiation.

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Article information

DOI: https://doi.org/10.1039/C5CC01137J
Article type: Communication
Submitted: 06 Feb 2015
Accepted: 17 Apr 2015
First published: 17 Apr 2015

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Chem. Commun., 2015,51, 8757-8760

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Highly stable CuInS₂@ZnS:Al core@shell quantum dots: the role of aluminium self-passivation

P. Rao, W. Yao, Z. Li, L. Kong, W. Zhang and L. Li, Chem. Commun., 2015, 51, 8757 DOI: 10.1039/C5CC01137J

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