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Growth of Semiconducting Graphene on Palladium
Abstract
We report in situ scanning tunneling microscopy studies of graphene growth on Pd(111) during ethylene deposition at temperatures between 723 and 1023 K. We observe the formation of monolayer graphene islands, 200-2000 A in size, bounded by Pd surface steps. Surprisingly, the topographic image contrast from graphene islands reverses with tunneling bias, suggesting a semiconducting behavior. Scanning tunneling spectroscopy measurements confirm that the graphene islands are semiconducting, with a band gap of 0.3 +/- 0.1 eV. On the basis of density functional theory calculations, we suggest that the opening of a band gap is due to the strong interaction between graphene and the Pd substrate. Our findings point to the possibility of preparing semiconducting graphene layers for future carbon-based nanoelectronic devices via direct deposition onto strongly interacting substrates.
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Cites
Superior Thermal Conductivity of Single-Layer Graphene
Balandin, A. A., Ghosh, S., Bao, W., Calizo, I., Teweldebrhan, D., Miao, F., & Lau, C. N. (2008) · Nano Letters · doi:10.1021/nl0731872 · Cited by 13,823
Two-dimensional atomic crystals
Novoselov, K. S., Jiang, D., Schedin, F., Booth, T. J., Khotkevich, V. V., Morozov, S. V., & Geim, A. K. (2005) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0502848102 · Cited by 11,788
Cited by
A review of chemical vapour deposition of graphene on copper
Mattevi, C., Kim, H., & Chhowalla, M. (2011) · J. Mater. Chem. · doi:10.1039/c0jm02126a · Cited by 1,452
Graphene synthesis: relationship to applications
Edwards, R. S., & Coleman, K. S. (2013) · Nanoscale · doi:10.1039/c2nr32629a · Cited by 773
Interface-Assisted Synthesis of 2D Materials: Trend and Challenges
Dong, R., Zhang, T., & Feng, X. (2018) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00056 · Cited by 710
Hill, E. W., Vijayaragahvan, A., & Novoselov, K. (2011) · IEEE Sensors Journal · doi:10.1109/jsen.2011.2167608 · Cited by 432
Tribology of two-dimensional materials: From mechanisms to modulating strategies
Zhang, S., Ma, T., Erdemir, A., & Li, Q. (2019) · Materials Today · doi:10.1016/j.mattod.2018.12.002 · Cited by 407
Metadata
- Authors
- Kwon, S.-Y., Ciobanu, C. V., Petrova, V., Shenoy, V. B., Bareño, J., Gambin, V., Petrov, I., & Kodambaka, S.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-09-28
- Volume
- 9
- Issue
- 12
- Pages
- 3985-3990
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2121215968
- Cited by
- 340
- References
- 2
- FWCI
- 11.96
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
