Issue 56, 2013
From the journal:

Chemical Communications

A tri-n-octylphosphine-assisted successive ionic layer adsorption and reaction method to synthesize multilayered core–shell CdSe–ZnS quantum dots with extremely high quantum yield†

Jun-jie Hao,a   Juan Zhoua  and  Chun-yang Zhang*a  

* Corresponding authors

a Single-Molecule Detection and Imaging Laboratory, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
E-mail: zhangcy@siat.ac.cn
Fax: +86-755-86392299
Tel: +86-755-86392211

Abstract

Multilayered ZnS shells are coated on a CdSe quantum dot (QD) core by a tri-n-octylphosphine-assisted successive ionic layer adsorption and reaction (TOP-SILAR) method. Notably, the quantum yield (QY) of obtained core–shell CdSe/ZnS QDs can reach up to 95% after coating with a 3-monolayered ZnS shell, and is maintained even after coating with a 6-monolayered ZnS shell, breaking through the bottleneck of low QY at high coverage of the shell.

Graphical abstract: A tri-n-octylphosphine-assisted successive ionic layer adsorption and reaction method to synthesize multilayered core–shell CdSe–ZnS quantum dots with extremely high quantum yield

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Article information

DOI
https://doi.org/10.1039/C3CC43147A
Article type
Communication
Submitted
28 Apr 2013
Accepted
28 May 2013
First published
29 May 2013

Chem. Commun., 2013,49, 6346-6348

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A tri-n-octylphosphine-assisted successive ionic layer adsorption and reaction method to synthesize multilayered core–shell CdSe–ZnS quantum dots with extremely high quantum yield

J. Hao, J. Zhou and C. Zhang, Chem. Commun., 2013, 49, 6346 DOI: 10.1039/C3CC43147A

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