The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.
Raman Scattering from High-Frequency Phonons in Supported n-Graphene Layer Films
Open accessAbstract
Results of room-temperature Raman scattering studies of ultrathin graphitic films supported on Si (100)/SiO2 substrates are reported. The results are significantly different from those known for graphite. Spectra were collected using 514.5 nm radiation on films containing from n = 1 to 20 graphene layers, as determined by atomic force microscopy. Both the first- and second-order Raman spectra show unique signatures of the number of layers in the film. The nGL film analogue of the Raman G-band in graphite exhibits a Lorentzian line shape whose center frequency shifts linearly relative to graphite as approximately 1/n (for n = 1 omegaG approximately 1587 cm-1). Three weak bands, identified with disorder-induced first-order scattering, are observed at approximately 1350, 1450, and 1500 cm-1. The approximately 1500 cm-1 band is weak but relatively sharp and exhibits an interesting n-dependence. In general, the intensity of these D-bands decreases dramatically with increasing n. Three second-order bands are also observed (approximately 2450, approximately 2700, and 3248 cm-1). They are analogues to those observed in graphite. However, the approximately 2700 cm-1 band exhibits an interesting and dramatic change of shape with n. Interestingly, for n < 5 this second-order band is more intense than the G-band.
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Cites
Electric Field Effect in Atomically Thin Carbon Films
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Cited by
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“In fa t, it hasplayed a very important role be ause it allows the iden-ti ation of the number of planes (Ferrari et al., 2006;Graf et al., 2007; Gupta et al., 2006; Pisana et al., 2007;Yan et al., 2007), and the study of the opti al phononmodes in graphene, parti ularly the ones in the enter ofthe…”
BackgroundSuperior Thermal Conductivity of Single-Layer Graphene
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Anomalous Lattice Vibrations of Single- and Few-Layer MoS2
Lee, C., Yan, H., Brus, L. E., Heinz, T. F., Hone, J., & Ryu, S. (2010) · ACS Nano · doi:10.1021/nn1003937 · Cited by 4,859
Wang, H., Maiyalagan, T., & Wang, X. (2012) · ACS Catalysis · doi:10.1021/cs200652y · Cited by 3,618
Metadata
- Authors
- Gupta, A., Chen, G., Joshi, P., Tadigadapa, S., & Eklund
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2006-11-16
- Volume
- 6
- Issue
- 12
- Pages
- 2667-2673
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2081362853
- Cited by
- 1,475
- References
- 6
- FWCI
- 29.73
- Type
- journal article
- Language
- en
- Open access
- green
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