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Journal of Nanomaterials
Volume 2016, Article ID 2672816, 7 pages
Research Article

First-Principle Study on the Interaction between Fe and Trivacancy in Graphene

Department of Physics, University of Science & Technology Beijing, Beijing 100083, China

Received 30 October 2015; Revised 11 December 2015; Accepted 20 December 2015

Academic Editor: Shamsul Arafin

Copyright © 2016 Xielong Hu and Fanyan Meng. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Ab initio calculations using density functional theory (DFT) have been performed in order to explore structure and energy gap opening of graphene with bridged-trivacancy and single adsorbed with Fe atom. Compared to the previous reconstructed trivacancy adsorbed with Fe atom with the energy gap of 0.10 eV, one interesting structure for the Fe-doped bridged-trivacancy complex has been identified, with one Fe atom above the graphene plane, and possesses energy gap with the value of 0.32 eV in the bridged circumstance. The band gap can be explained by the decrease of the free electrons. These results provide insights to engineer graphene’s properties through defect addition and manipulation for industrial semiconductor applications such as the photocatalytic technology and graphene based electronics.