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Shyntesis and Characterization of Quantum Dot Superlattices

Published online by Cambridge University Press:  02 July 2020

M. José-Yacamán ,
C. Gutiérrez-Wing ,
P. Santiago ,
J. Ascencio  and
A. Camacho
M. José-Yacamán
Affiliation:
Instituto Nacional de Investigaciones Nucleares., Amsterdam46-202. Col. Hipódromo Condesa. 06100 México, D. F. México [email protected] Instituto de Física-UNAM. Apartado Postal 20-364. 01000, México, D. F.
C. Gutiérrez-Wing
Affiliation:
Instituto Nacional de Investigaciones Nucleares., Amsterdam46-202. Col. Hipódromo Condesa. 06100 México, D. F. México [email protected]
P. Santiago
Affiliation:
Instituto Nacional de Investigaciones Nucleares., Amsterdam46-202. Col. Hipódromo Condesa. 06100 México, D. F. México [email protected]
J. Ascencio
Affiliation:
Instituto Nacional de Investigaciones Nucleares., Amsterdam46-202. Col. Hipódromo Condesa. 06100 México, D. F. México [email protected]
A. Camacho
Affiliation:
Instituto Nacional de Investigaciones Nucleares., Amsterdam46-202. Col. Hipódromo Condesa. 06100 México, D. F. México [email protected]
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Extract

The engineering of a new generation of advanced materials based on nanoparticles demands the fabrication of self-assembled arrays of passivated metal, oxide and semiconductor clusters (1 -). In particular the case of self-assembled gold clusters passivated with an organic molecule has attracted the attention of several researchers (2-3). Because its unique properties gold metal is a leading candidate for the fabrication of single electron tunneling devices.

Passivated gold nanoclusters were produced using the method developed by Brust et.al. (4) with the modifications of Whetten et.al (5) n-alkylthiol molecules were used as passivating agent. Carbon chains from C=4 to C=18 were used. It was found that C=12 dodecanethiol was optimum for forming ordered arrays of the clusters. To produce the superlattice crystallization a toluene vapor atmosphere was used. The passivated clusters were deposited on a copper electron microscope grid covered with carbon.

Type
Sir John Meurig Thomas Symposium: Microscopy and Microanalysis in the Chemical Sciences
Information
Microscopy and Microanalysis , Volume 6 , Issue S2: Proceedings: Microscopy & Microanalysis 2000, Microscopy Society of America 58th Annual Meeting, Microbeam Analysis Society 34th Annual Meeting, Microscopical Society of Canada/Societe de Microscopie de Canada 27th Annual Meeting, Philadelphia, Pennsylvania August 13-17, 2000 , August 2000 , pp. 10 - 11
Copyright
Copyright © Microscopy Society of America

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References

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