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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
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
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1. Alivisatos, A. P., J. Phys. Chem., 100, 13226 (1996).Google Scholar
2. Hagfeldt, A., Gratzel, M., M., Chem. Rev. 95, 49 (1995).Google Scholar
3. Pileni, M. P., Supramolecular Science 5, 321(1998).Google Scholar
4. Curri, M. L., Agostiano, A., Manna, L., Della Monica, M., Catalano, M., Chiavarone, L., Spagnolo, V., Lugarà, M., J. Phys. Chem. 104, 8391 (2000).Google Scholar
5. Modes, S., Lianos, P., J. Phys. Chem. 93, 5854 (1989).Google Scholar
6. Guinier, A., “Theorie et technique de la radiocrystallographie”, Dunod, Paris, 1964.Google Scholar
7. Moulder, F., Stickle, W. F., Sobol, P. E., Bomben, K. D., “Handbook of X-ray Photoelectron Spectroscopy, Perkin Elmer Corporation”, Eden Prairie, 1992.Google Scholar
8. Curri, M. L., Leo, G., Alvisi, M., Agostiano, A., Della Monica, M., Vasanelli, L. submitted to J. of Colloid and Interf. Sci. (2001).Google Scholar