A Theoretical Study of Nonlinear Optical Features of Alumina Nanostructures with the Groups III and VI Dopants

Document Type : Regular Article

Author

Arak University

Abstract
A comprehensive study on the structural, electronic and nonlinear optical (NLO) properties of alumina nanostructures (Al2O3)n with n = 2-5 belonging to the groups III and VI dopants carried out by density functional theory. The NBO charges exhibit dopant atoms caused to the increasing charge transfer and introduces acceptor-donor model for NLO response of alumina nanostructures. Under the influence of doping S and Se, the energy gap decreases, because high energy level is formed as the new HOMO orbitals in the primary gap of pristine nanostructures. Furthermore, the results of the present study show that dopant atoms enhance NLO response in the alumina nanostructures and the greatest values are obtained for a, b0  and γtot through doping Se in Al10O15.

Graphical Abstract

A Theoretical Study of Nonlinear Optical Features of Alumina Nanostructures with the Groups III and VI Dopants

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Volume 4, Issue 4 - Serial Number 12
Autumn 2016
Pages 627-641

  • Receive Date 02 May 2016
  • Revise Date 23 June 2016
  • Accept Date 01 July 2016