First-principles calculations within density functional theory have been carried out to investigate the adsorption of various gas molecules including CO, CO2, NH3, NO, NO2, CH4, H2O, N-2, O-2 and SO2 on MoS2 monolayer in order to fully exploit gas sensing capabilities of MoS2. By including van der Waals interactions between gas molecules and MoS2, we find that only NO and NO2 can bind strongly to MoS2 sheet compared to other gas molecules, in line with experimental observations. The charge transfer and variation of electronic structures are discussed in view of the density of states and molecular orbitals of gas molecules. (C) 2014 Elsevier B.V. All rights reserved.
机构:
Bilkent Univ, Dept Phys, TR-06800 Ankara, Turkey
Bilkent Univ, UNAM Inst Mat Sci & Nanotechnol, TR-06800 Ankara, TurkeyBilkent Univ, Dept Phys, TR-06800 Ankara, Turkey
Ataca, C.
;
Ciraci, S.
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Bilkent Univ, Dept Phys, TR-06800 Ankara, Turkey
Bilkent Univ, UNAM Inst Mat Sci & Nanotechnol, TR-06800 Ankara, TurkeyBilkent Univ, Dept Phys, TR-06800 Ankara, Turkey
机构:
UCL, London Ctr Nanotechnol, London WC1E 6BT, England
UCL, Dept Chem, London WC1E 6BT, England
Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, GermanyUCL, London Ctr Nanotechnol, London WC1E 6BT, England
Carrasco, Javier
;
Santra, Biswajit
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Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, GermanyUCL, London Ctr Nanotechnol, London WC1E 6BT, England
Santra, Biswajit
;
Klimes, Jiri
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UCL, London Ctr Nanotechnol, London WC1E 6BT, England
UCL, Dept Chem, London WC1E 6BT, EnglandUCL, London Ctr Nanotechnol, London WC1E 6BT, England
Klimes, Jiri
;
Michaelides, Angelos
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UCL, London Ctr Nanotechnol, London WC1E 6BT, England
UCL, Dept Chem, London WC1E 6BT, EnglandUCL, London Ctr Nanotechnol, London WC1E 6BT, England
机构:
Bilkent Univ, Dept Phys, TR-06800 Ankara, Turkey
Bilkent Univ, UNAM Inst Mat Sci & Nanotechnol, TR-06800 Ankara, TurkeyBilkent Univ, Dept Phys, TR-06800 Ankara, Turkey
Ataca, C.
;
Ciraci, S.
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机构:
Bilkent Univ, Dept Phys, TR-06800 Ankara, Turkey
Bilkent Univ, UNAM Inst Mat Sci & Nanotechnol, TR-06800 Ankara, TurkeyBilkent Univ, Dept Phys, TR-06800 Ankara, Turkey
机构:
UCL, London Ctr Nanotechnol, London WC1E 6BT, England
UCL, Dept Chem, London WC1E 6BT, England
Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, GermanyUCL, London Ctr Nanotechnol, London WC1E 6BT, England
Carrasco, Javier
;
Santra, Biswajit
论文数: 0引用数: 0
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机构:
Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, GermanyUCL, London Ctr Nanotechnol, London WC1E 6BT, England
Santra, Biswajit
;
Klimes, Jiri
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机构:
UCL, London Ctr Nanotechnol, London WC1E 6BT, England
UCL, Dept Chem, London WC1E 6BT, EnglandUCL, London Ctr Nanotechnol, London WC1E 6BT, England
Klimes, Jiri
;
Michaelides, Angelos
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机构:
UCL, London Ctr Nanotechnol, London WC1E 6BT, England
UCL, Dept Chem, London WC1E 6BT, EnglandUCL, London Ctr Nanotechnol, London WC1E 6BT, England