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Coupling Epitaxy, Chemical Bonding, and Work Function at the Local Scale in Transition Metal-Supported Graphene
Open accessAbstract
Resonance tunneling spectroscopy and density functional theory calculations are employed to explore local variations in the electronic surface potential of a single graphene layer grown on Rh(111). A work function modulation of 220 meV is experimentally measured, indicating that the chemical bonding strength varies significantly across the supercell of the Moiré pattern formed when graphene is bonded to Rh(111). In combination with high-resolution images, which provide precise knowledge of the local atomic registry at the carbon-metal interface, we identify experimentally, and confirm theoretically, the atomic configuration of maximum chemical bonding to the substrate. Our observations are at odds with reported trends for other transition metal substrates. We explain why this is the case by considering the various factors that contribute to the bonding at the graphene/metal interface.
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Cites
Two-dimensional gas of massless Dirac fermions in graphene
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Katsnelson, M. I., Grigorieva, I. V., Dubonos, S. V., & Firsov, A. A. (2005) · Nature · doi:10.1038/nature04233 · Cited by 21,611
Cited by
Cui, X., Ren, P., Deng, D., Deng, J., & Bao, X. (2016) · Energy & Environmental Science · doi:10.1039/c5ee03316k · Cited by 791
Band Alignment and Minigaps in Monolayer MoS2-Graphene van der Waals Heterostructures
Pierucci, D., Henck, H., Avila, J., Balan, A., Naylor, C. H., Patriarche, G., Dappe, Y. J., Silly, M. G., Sirotti, F., Johnson, A. T. C., et al. (2016) · Nano Letters · doi:10.1021/acs.nanolett.6b00609 · Cited by 365
Growth of epitaxial graphene: Theory and experiment
Tetlow, H., Posthuma de Boer, J., Ford, I. J., Vvedensky, D. D., Coraux, J., & Kantorovich, L. (2014) · Physics Reports · doi:10.1016/j.physrep.2014.03.003 · Cited by 274
Toward Single-Layer Uniform Hexagonal Boron Nitride–Graphene Patchworks with Zigzag Linking Edges
Gao, Y., Zhang, Y., Chen, P., Li, Y., Liu, M., Gao, T., Ma, D., Chen, Y., Cheng, Z., Qiu, X., et al. (2013) · Nano Letters · doi:10.1021/nl4021123 · Cited by 265
Metadata
- Authors
- Wang, B., Caffio, M., Bromley, C., Früchtl, H., & Schaub, R.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-10-01
- Volume
- 4
- Issue
- 10
- Pages
- 5773-5782
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2045456686
- Cited by
- 160
- References
- 1
- FWCI
- 6.64
- Type
- journal article
- Language
- en
- Open access
- green
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- Wang, B., Caffio, M., Bromley, C., Früchtl, H., & Schaub, R. (2010). Coupling Epitaxy, Chemical Bonding, and Work Function at the Local Scale in Transition Metal-Supported Graphene. ACS Nano. https://doi.org/10.1021/nn101520k
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