Size and Dimension Dependent Vacancy Formation Energy of Nanosolids

Abstract:

A model for size dependent vacancy formation energy of nanosolids (nanoparticles, nanowires and nanofilms) has been developed by the consideration of their surface free energy. It is found that the vacancy formation energy of nanosolids decreases with the decrease of size. The relative variation of vacancy formation energy of nanoparticles, nanowires and nanofilms to bulk value at specified size follows 3:2:1. Furthermore, vacancy formation energy of nanosolids changes linearly with the reciprocal of size. The present results agree well with the predictions of BOLS and ECN theory.

• Periodical: Advanced Materials Research (Volumes 268-270)
• Pages: 930-933
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.268-270.930
• Online since: July 2011
• Authors: Shi Yun Xiong, Wei Hong Qi, Bai Yun Huang, Ming Pu Wang
• Keywords: Nanosolids, Size Effect, Vacancy Formation Energy

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