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Fabrication of ZnO Coated ZnS:Mn2+ Nanoparticles

Published online by Cambridge University Press:  26 February 2011

Shinji Ishizaki ,
Yusuke Kusakari  and
Masakazu Kobayashi
Shinji Ishizaki
Affiliation:
Laboratory for Material Science and Technology, Waseda University, 2–8–26, Nishiwaseda, Shinjuku-ku, Tokyo, 169–0051, Japan
Yusuke Kusakari
Affiliation:
Laboratory for Material Science and Technology, Waseda University, 2–8–26, Nishiwaseda, Shinjuku-ku, Tokyo, 169–0051, Japan
Masakazu Kobayashi
Affiliation:
Laboratory for Material Science and Technology, Waseda University, 2–8–26, Nishiwaseda, Shinjuku-ku, Tokyo, 169–0051, Japan
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Abstract

The fabrication of ZnO coated ZnS:Mn2+ nanoparticles were achieved using simple methods. ZnS:Mn2+ nanoparticles were prepared by a mechanical milling method. Coating of ZnO was then performed using a simple chemical method. Structural properties were evaluated by the X-ray powder diffraction (XRD) and the transmission electron microscope (TEM). Optical properties of the ZnO coated ZnS:Mn2+ nanoparticle were characterized by exciting the particle included solvent using an UV-LED (400 nm). Bright orange color fluorescence was observed, and the fluorescence intensity of ZnO coated ZnS:Mn2+ nanoparticles was enhanced as compared to uncoated ZnS:Mn2+ nanoparticles. The capping of the core surface has probably terminated surface defects of ZnS:Mn2+ nanoparticles, and resulted in the improved fluorescence intensity.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 829: Symposium B – Progress in Compound Semiconductor Materials IV – Electronic and Optoelectronic Applications , 2004 , B2.22
Copyright
Copyright © Materials Research Society 2005

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References

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