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ZnS nanoparticles synthesis and characterization

Published online by Cambridge University Press:  01 February 2011

Yvonne Axmann ,
Alke Petri  and
Heinrich Hofmann
Yvonne Axmann
Affiliation:
Powder Technology Laboratory, Materials Science and Engineering Department, Swiss Federal Institute of Technology, EPFL, CH-1015 Lausanne, Switzerland
Alke Petri
Affiliation:
Powder Technology Laboratory, Materials Science and Engineering Department, Swiss Federal Institute of Technology, EPFL, CH-1015 Lausanne, Switzerland
Heinrich Hofmann
Affiliation:
Powder Technology Laboratory, Materials Science and Engineering Department, Swiss Federal Institute of Technology, EPFL, CH-1015 Lausanne, Switzerland
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Abstract

ZnS:Mn2+ nanoparticles were synthesized via a wet chemical method with L-cysteine as the stabilizing agent. The obtained aqueous dispersions show an orange luminescence, which is typical for the 4T1 → 6A1 transition within the Mn2+ d-orbitals. The fluorescence quantum yield has been determined with quinine sulphate as a dye reference. It can be increased after formation of a SiO2 shell around the particles by a factor of three. The particle size was determined with transmission electron microscopy (TEM), X-ray diffraction and PCS measurements.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 789 , 2003 , N11.23
Copyright
Copyright © Materials Research Society 2004

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References

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