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Ion Beam-induced Quantum Dot Synthesis in Glass

Published online by Cambridge University Press:  01 February 2011

Harry Bernas  and
Roch Espiau de Lamaëstre
Harry Bernas
Affiliation:
bernas@csnsm.in2p3.fr, CSNSM-CNRS, Bat. 108, University Paris-Sud 11, Orsay, 91405, France, +33 1 6915 5222, +33 1 6915 5268
Roch Espiau de Lamaëstre
Affiliation:
roch.espiau-de-lamaestre@cea.fr, CSNSM-CNRS, Bat. 108, University Paris-Sud 11, Orsay, 91405, France
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Abstract

Irradiation-induced processes are often considered only in their nonequilibrium aspects. The purpose of this brief review is to show that chemistry, and particularly redox properties, play a major role in the thermal evolution of such systems and generally cannot, therefore, be neglected. This is exemplified by the synthesis of Ag nanoclusters in glasses and silica, under both low (gamma-ray) and high (MeV ion) deposited energy density irradiation conditions. The nanocluster formation mechanism is shown to be similar to the latent image formation process in photography. The corresponding information was used to control nucleation and growth of PbS clusters in glasses, leading to promising optical properties. In the course of these studies, we also showed that lognormal size distributions characterize the absence of information on the nanocluster formation process.

Keywords

ion-beam processingnucleation & growthcluster assembly
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1020: Symposium GG – Ion-Beam-Based Nanofabrication , 2007 , 1020-GG06-01
Copyright
Copyright © Materials Research Society 2007

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