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Role of cohesive energy on the interparticle coalescence behavior of dispersed nanoparticles subjected to energetic ion irradiation

Published online by Cambridge University Press:  31 January 2011

Sayan Bayan  and
Dambarudhar Mohanta
Dambarudhar Mohanta*
Affiliation:
Nanoscience Laboratory, Department of Physics, Tezpur University, PO Napaam, Assam 784028, India
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

The present work reports on the conditions of nanoparticle growth and splitting under energetic ion irradiation. Cohesive energy that determines the thermal stability of a given nanoparticle system was calculated by extending surface area difference (SAD) and liquid drop model (LDM). Based on the size-dependent cohesive energy calculations, the interparticle coalescence mechanism is discussed for a ZnS-based nanoparticle system with special reference to a variety of matrices. The interparticle separation is found to play key role in particle–particle coalescence leading to nanoparticle growth or partial evaporation that results in splitting.

Keywords

II-VINanostructureIon–solid interactions
Type
Articles
Information
Journal of Materials Research , Volume 25 , Issue 5 , May 2010 , pp. 814 - 820
Copyright
Copyright © Materials Research Society 2010

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