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Structural, Optical and Chemical Properties of Zns and Cds Nanoparticles Obtained by an Improved Colloidal Chemistry Synthetic Route.

Published online by Cambridge University Press:  21 March 2011

M. Lucia Curri ,
Angela Agostiano ,
Mario Della Monica ,
Gabriella Leo ,
Mauro Lomascolo ,
Marco Alvisi  and
Lorenzo Vasanelli
M. Lucia Curri
Affiliation:
C. S. CFILM - CNR, c/o Dipartimento di Chimica - Bari, Via Orabona 4 I-70126 Bari -, Italy
Angela Agostiano
Affiliation:
C. S. CFILM - CNR, c/o Dipartimento di Chimica - Bari, Via Orabona 4 I-70126 Bari -, Italy
Mario Della Monica
Affiliation:
C. S. CFILM - CNR, c/o Dipartimento di Chimica - Bari, Via Orabona 4 I-70126 Bari -, Italy
Gabriella Leo
Affiliation:
IME - CNR, Via Arnesano I-73100 Lecce, Italy
Mauro Lomascolo
Affiliation:
IME - CNR, Via Arnesano I-73100 Lecce, Italy
Marco Alvisi
Affiliation:
IME - CNR, Via Arnesano I-73100 Lecce, Italy
Lorenzo Vasanelli
Affiliation:
IME - CNR, Via Arnesano I-73100 Lecce, Italy
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Abstract

In this work an improved synthetic route that exploits a quaternary water-in-oil microemulsion has been used to obtain nanocrystals of ZnS, CdS and their mixed compounds, - CdxZn1-xS - differing by their size and composition and having high crystalline quality, small dimensions and a quite good size distribution. The opportunity offered by the use of water-in-oil microemulsion to immobilize the nanocrystals onto solid substrate by self-assembling to obtain stable adherent layers has also been exploited.

The physical and chemical properties of obtained nanocrystals and layers have been investigated by UV-vis spectroscopy, X-Ray Diffraction X-ray Photoelectron Spectroscopy and Scanning Tunneling Microscopy. The role played by the co-surfactant (pentanol) in controlling nanocrystal size and stability has been discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 676: Symposium Y – Synthesis, Functional Properties and Applications of Nanostructures , 2001 , Y2.4
Copyright
Copyright © Materials Research Society 2001

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References

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