Probing carbon isotope effects on the Raman spectra of graphene with different [superscript 13]C concentrations
A resonance Raman study of graphene samples with different [superscript 13]C isotopic concentrations and using different laser excitation energies is presented. The main Raman peaks (D, G, G[superscript *], and 2D) of graphene were measured and the dependence of their frequencies on the isotope atom...
| Main Authors: | , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2015
|
| Online Access: | http://hdl.handle.net/1721.1/98418 https://orcid.org/0000-0002-3023-396X |
| _version_ | 1826203392316276736 |
|---|---|
| author | Carvalho, Bruno R. Hao, Yufeng Righi, Ariete Colombo, Luigi Ruoff, Rodney S. Pimenta, Marcos A. Fantini, Cristiano Rodriguez Nieva, Joaquin Fran |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Carvalho, Bruno R. Hao, Yufeng Righi, Ariete Colombo, Luigi Ruoff, Rodney S. Pimenta, Marcos A. Fantini, Cristiano Rodriguez Nieva, Joaquin Fran |
| author_sort | Carvalho, Bruno R. |
| collection | MIT |
| description | A resonance Raman study of graphene samples with different [superscript 13]C isotopic concentrations and using different laser excitation energies is presented. The main Raman peaks (D, G, G[superscript *], and 2D) of graphene were measured and the dependence of their frequencies on the isotope atomic mass follows a simple harmonic oscillator relation. The G[superscript *] and 2D double-resonance peak positions were measured as a function of the laser energy, and we observed that the slopes of the laser energy dependence are the same independently of isotope concentration. This result shows that isotopic substitution does not alter the electron and phonon dispersions near the K point of the graphene Brillouin zone. From the linewidth of G and 2D Raman peaks, we have also obtained a dependence of the phonon lifetime on the [superscript 13]C isotope concentration. |
| first_indexed | 2024-09-23T12:36:11Z |
| format | Article |
| id | mit-1721.1/98418 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:36:11Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/984182022-09-28T08:54:09Z Probing carbon isotope effects on the Raman spectra of graphene with different [superscript 13]C concentrations Carvalho, Bruno R. Hao, Yufeng Righi, Ariete Colombo, Luigi Ruoff, Rodney S. Pimenta, Marcos A. Fantini, Cristiano Rodriguez Nieva, Joaquin Fran Massachusetts Institute of Technology. Department of Physics Rodriguez Nieva, Joaquin Fran A resonance Raman study of graphene samples with different [superscript 13]C isotopic concentrations and using different laser excitation energies is presented. The main Raman peaks (D, G, G[superscript *], and 2D) of graphene were measured and the dependence of their frequencies on the isotope atomic mass follows a simple harmonic oscillator relation. The G[superscript *] and 2D double-resonance peak positions were measured as a function of the laser energy, and we observed that the slopes of the laser energy dependence are the same independently of isotope concentration. This result shows that isotopic substitution does not alter the electron and phonon dispersions near the K point of the graphene Brillouin zone. From the linewidth of G and 2D Raman peaks, we have also obtained a dependence of the phonon lifetime on the [superscript 13]C isotope concentration. Brazil. National Council for Scientific and Technological Development 2015-09-09T12:25:38Z 2015-09-09T12:25:38Z 2015-09 2015-06 2015-09-08T22:00:28Z Article http://purl.org/eprint/type/JournalArticle 1098-0121 1550-235X http://hdl.handle.net/1721.1/98418 Carvalho, Bruno R., et al. "Probing carbon isotope effects on the Raman spectra of graphene with different [superscript 13]C concentrations." Phys. Rev. B 92, 125406 (September 2015). © 2015 American Physical Society https://orcid.org/0000-0002-3023-396X en http://dx.doi.org/10.1103/PhysRevB.92.125406 Physical Review B Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Carvalho, Bruno R. Hao, Yufeng Righi, Ariete Colombo, Luigi Ruoff, Rodney S. Pimenta, Marcos A. Fantini, Cristiano Rodriguez Nieva, Joaquin Fran Probing carbon isotope effects on the Raman spectra of graphene with different [superscript 13]C concentrations |
| title | Probing carbon isotope effects on the Raman spectra of graphene with different [superscript 13]C concentrations |
| title_full | Probing carbon isotope effects on the Raman spectra of graphene with different [superscript 13]C concentrations |
| title_fullStr | Probing carbon isotope effects on the Raman spectra of graphene with different [superscript 13]C concentrations |
| title_full_unstemmed | Probing carbon isotope effects on the Raman spectra of graphene with different [superscript 13]C concentrations |
| title_short | Probing carbon isotope effects on the Raman spectra of graphene with different [superscript 13]C concentrations |
| title_sort | probing carbon isotope effects on the raman spectra of graphene with different superscript 13 c concentrations |
| url | http://hdl.handle.net/1721.1/98418 https://orcid.org/0000-0002-3023-396X |
| work_keys_str_mv | AT carvalhobrunor probingcarbonisotopeeffectsontheramanspectraofgraphenewithdifferentsuperscript13cconcentrations AT haoyufeng probingcarbonisotopeeffectsontheramanspectraofgraphenewithdifferentsuperscript13cconcentrations AT righiariete probingcarbonisotopeeffectsontheramanspectraofgraphenewithdifferentsuperscript13cconcentrations AT colomboluigi probingcarbonisotopeeffectsontheramanspectraofgraphenewithdifferentsuperscript13cconcentrations AT ruoffrodneys probingcarbonisotopeeffectsontheramanspectraofgraphenewithdifferentsuperscript13cconcentrations AT pimentamarcosa probingcarbonisotopeeffectsontheramanspectraofgraphenewithdifferentsuperscript13cconcentrations AT fantinicristiano probingcarbonisotopeeffectsontheramanspectraofgraphenewithdifferentsuperscript13cconcentrations AT rodrigueznievajoaquinfran probingcarbonisotopeeffectsontheramanspectraofgraphenewithdifferentsuperscript13cconcentrations |