Crossref journal-article
AIP Publishing
Applied Physics Letters (317)
Abstract

We investigate the electronic properties of graphene upon water adsorption and study the influence of the SiO2 substrate in this context using density functional calculations. Perfect suspended graphene is rather insensitive to H2O adsorbates, as doping requires highly oriented H2O clusters. For graphene on a defective SiO2 substrate, we find a strongly different behavior: H2O adsorbates can shift the substrate’s impurity bands and change their hybridization with the graphene bands. In this way, H2O can lead to doping of graphene for much lower adsorbate concentrations than for free hanged graphene. The effect depends strongly on the microscopic substrate properties.

Bibliography

Wehling, T. O., Lichtenstein, A. I., & Katsnelson, M. I. (2008). First-principles studies of water adsorption on graphene: The role of the substrate. Applied Physics Letters, 93(20).

Authors 3
  1. Tim O. Wehling (first)
  2. Alexander I. Lichtenstein (additional)
  3. Mikhail I. Katsnelson (additional)
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Dates
Type When
Created 16 years, 9 months ago (Nov. 20, 2008, 6:18 p.m.)
Deposited 2 years, 2 months ago (July 2, 2023, 4:45 p.m.)
Indexed 1 week ago (Aug. 30, 2025, 12:21 p.m.)
Issued 16 years, 9 months ago (Nov. 17, 2008)
Published 16 years, 9 months ago (Nov. 17, 2008)
Published Online 16 years, 9 months ago (Nov. 20, 2008)
Published Print 16 years, 9 months ago (Nov. 17, 2008)
Funders 0

None

@article{Wehling_2008, title={First-principles studies of water adsorption on graphene: The role of the substrate}, volume={93}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.3033202}, DOI={10.1063/1.3033202}, number={20}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Wehling, Tim O. and Lichtenstein, Alexander I. and Katsnelson, Mikhail I.}, year={2008}, month=nov }