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  • 文献标题:   Sulfur dioxide molecule sensors based on zigzag graphene nanoribbons with and without Cr dopant
  • 文献类型:   Article
  • 作　　者:   SHAO L, CHEN GD, YE HG, NIU HB, WU YL, ZHU YZ, DING BJ
  • 作者关键词:   graphene nanoribbon, so2, molecule sensor, first principle
  • 出版物名称:   PHYSICS LETTERS A
  • ISSN:   0375-9601 EI 1873-2429
  • 通讯作者地址:   Xi An Jiao Tong Univ
  • 被引频次:   20
  • DOI:   10.1016/j.physleta.2013.12.042
  • 出版年:   2014

▎ 摘　　要

Structure, electronic, and transport properties of sulfur dioxide (SO2) molecule adsorbed on pure and Cr doped zigzag graphene nanoribbons (ZGNRs) are investigated by means of first principle density functional theory and nonequilibrium Green's function computations. It is found that Cr doped ZGNR is more sensitive to SO2 molecule than pure ZGNR. The pure ZGNRs with and without SO2 molecule show similar I-V curves, but the current of Cr doped ZGNR will significant increase after SO2 molecule adsorption. (C) 2014 Elsevier B.V. All rights reserved.