Journal of the Korean Physical Society

, Volume 69, Issue 9, pp 1439–1444 | Cite as

Structural effects of substitutional impurities on MoO3 bilayers: A first principles study

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Abstract

Energy band-gap engineering via impurity intercalation into the 2-D MoO3 bilayer lattice has been studied using density functional theory calculations, and the effects of various kinds of dopants on the electronic structure have been explored. The dopants were incorporated via both oxygen and molybdenum substitution. The results show that although the MoO3 bilayer is an indirect band-gap semiconductor with zero magnetization, doped molybdenum trioxide experiences a band-gap reduction and a pure magnetization. Based on the calculated results, impurity doping leads to the creation of impurity levels inside the band-gap, and thereby both types of conductivity (n type and p type) can be identified. The calculated impurity formation-energies indicate that Nb and W atoms can be readily incorporated into the MoO3 bilayer.

Keywords

2-D MoO3 bilayer Impurity doping Formation energy n-type (p-type) conductivity DFT 
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Copyright information

© The Korean Physical Society 2016

Authors and Affiliations

  1. 1.Department of Physics, Mashhad BranchIslamic Azad UniversityMashhadIran
  2. 2.Research Center for Applied Biology, Mashhad BranchIslamic Azad UniversityMashhadIran

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