Issue 46, 2011
From the journal:

Journal of Materials Chemistry

Flow reactor synthesis of CdSe, CdS, CdSe/CdS and CdSeS nanoparticles from single molecular precursor(s)

Ahmed Lutfi Abdelhady,a   Mohammad Afzaal,ab   Mohammad Azad Malika  and  Paul O'Brien*a  

* Corresponding authors

a The School of Chemistry and The School of Materials, The University of Manchester, Manchester, UK
E-mail: paul.obrien@manchester.ac.uk
Fax: +44 161 275 4598
Tel: +44 161 275 4653

b Present address: Center of Research Excellence in Renewable Energy, King Fahd University of Petroleum and Minerals, P.O. Box 1292, Dhahran, Saudi Arabia

Abstract

[Cd(S2CNMenHex)2] and [Cd(Se2PiPr2)2] were used as single source precursors (SSPs) in oleylamine for the synthesis of CdS, CdSe, CdSe/CdS, and CdSeS nanoparticles in a microcapillary reactor. The influence of the different reaction parameters (precursor concentration, growth temperature and residence time) on the size and the optical properties of the nanoparticles were studied. Transmission electron microscopy (TEM) showed that CdS nanoparticles were in the range of 5.0 to 8.0 nm whereas the CdSe nanoparticles were small (ca. 2 nm) with blue luminescence irrespective of the growth temperature, concentration or residence time. The CdSe/CdS core/shell and the CdSeS alloys were bluish green or green luminescent depending on their size.

Graphical abstract: Flow reactor synthesis of CdSe, CdS, CdSe/CdS and CdSeS nanoparticles from single molecular precursor(s)

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Article information

DOI
https://doi.org/10.1039/C1JM13590B
Article type
Paper
Submitted
27 Jul 2011
Accepted
28 Sep 2011
First published
21 Oct 2011

J. Mater. Chem., 2011,21, 18768-18775

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Flow reactor synthesis of CdSe, CdS, CdSe/CdS and CdSeS nanoparticles from single molecular precursor(s)

A. L. Abdelhady, M. Afzaal, M. A. Malik and P. O'Brien, J. Mater. Chem., 2011, 21, 18768 DOI: 10.1039/C1JM13590B

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