Synthesis and characterization of disodium ethylenediaminetetraacetic acid capped and europium doped CdS nanoparticles

We present a novel two-step chemical synthesis route to produce of disodium ethylenediaminetetraacetic acid (EDTA) capped and europium doped CdS nanoparticles. First EDTA was applied to chelate with cadmium on the surface of cadmium-rich CdS nanoparticles and act as a capping agent. Further, the pur...

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Bibliographic Details
Published in:Solid state communications 2006-03, Vol.137 (9), p.503-506
Main Authors: Zhu, Guanghua, Drozdowicz-Tomsia, Krystyna, Yu, Hong, Motlan, Goldys, Ewa M.
Format: Article
Language:English
Subjects:
A. Cadmium sulphide
A. EDTA
A. Nanoparticles
A. Semiconductors
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Nanocrystals and nanoparticles
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures
Physics
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Summary:We present a novel two-step chemical synthesis route to produce of disodium ethylenediaminetetraacetic acid (EDTA) capped and europium doped CdS nanoparticles. First EDTA was applied to chelate with cadmium on the surface of cadmium-rich CdS nanoparticles and act as a capping agent. Further, the purified EDTA-capped particles were used to bind with Eu 3+. The purified and redispersed particles were characterized by UV/vis absorption, photoluminescence, TEM and SEM. It was observed that Eu 3+ on the nanoparticle surface significantly increased the band gap emission intensity of the CdS nanoparticles.
ISSN:0038-1098
1879-2766
DOI:10.1016/j.ssc.2005.12.026