The European Physical Journal B

, Volume 67, Issue 4, pp 507–512 | Cite as

Electronic structure of defects in a boron nitride monolayer

  • S. Azevedo
  • J. R. Kaschny
  • C. M.C. de Castilho
  • F. de Brito Mota
Solid State and Materials


We investigate, using first-principles calculations, the electronic structure of substitutional and vacancy defects in a boron nitride monolayer. We found that the incorporation of a substitutional carbon atom induces appreciable modification on the electronic properties, when compared to a non-defective boron nitride sheet. The incorporation of substitutional carbon impurity also induces a significant reduction of the work function. In addition, we found that defects introduce electronic states in the energy-gap region, with strong impact on the optical properties of the material. The calculation results indicate that spin polarization is obtained when substitutional impurities or vacancy defects are introduced in the structure


71.20.Tx Fullerenes and related materials; intercalation compounds 71.15.Mb Density functional theory, local density approximation, gradient and other corrections 73.22.-f Electronic structure of nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals 


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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • S. Azevedo
    • 1
  • J. R. Kaschny
    • 2
  • C. M.C. de Castilho
    • 3
  • F. de Brito Mota
    • 3
  1. 1.Departamento de FísicaUniversidade Estadual de Feira de Santana km-03Feira de SantanaBrazil
  2. 2.Coordenação de Engenharia Elétrica, CEFET-BA, Av. Amazonas 3150, 45030-220Vitória da ConquistaBrazil
  3. 3.Grupo de Física de Superfícies e Materiais, Instituto de Física, Universidade Federal da BahiaSalvadorBrazil

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