Double resonance Raman spectra of graphene : a full 2D calculation
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2007.
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | eng |
| Published: |
Massachusetts Institute of Technology
2008
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/1721.1/42161 |
| _version_ | 1811077309917036544 |
|---|---|
| author | Narula, Rohit |
| author2 | Stephanie Reich. |
| author_facet | Stephanie Reich. Narula, Rohit |
| author_sort | Narula, Rohit |
| collection | MIT |
| description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2007. |
| first_indexed | 2024-09-23T10:40:55Z |
| format | Thesis |
| id | mit-1721.1/42161 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T10:40:55Z |
| publishDate | 2008 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/421612019-04-12T09:30:37Z Double resonance Raman spectra of graphene : a full 2D calculation Narula, Rohit Stephanie Reich. Massachusetts Institute of Technology. Dept. of Materials Science and Engineering. Massachusetts Institute of Technology. Dept. of Materials Science and Engineering. Materials Science and Engineering. Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2007. Includes bibliographical references (leaves 85-87). Visible range Raman spectra of graphene are generated based on the double resonant process employing a full two-dimensional numerical calculation applying second-order perturbation theory. Tight binding expressions for both the TO phonon dispersion and the [pi] - [pi]* electronic bands are used, which are then fit to experimental or ab-initio results. We are able to reproduce the single-peak D mode of graphene at ~ 1380 cm-1 that is identical to experiment. A near linear shift in the D mode peak with changing incoming laser energy of 33 cm-1/eV is calculated. Our shift marginally underestimates the experimental shifts as most of the literature features specimens that contain a few or more layers of graphene through to graphite that ought to subtly alter their electronic and phonon dispersions. However, our approach is readily applicable to such homologous forms of graphene once we have available their electronic band structure and phonon dispersions. by Rohit Narula. S.M. 2008-09-03T14:45:40Z 2008-09-03T14:45:40Z 2007 2007 Thesis http://hdl.handle.net/1721.1/42161 228504905 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 95 leaves application/pdf Massachusetts Institute of Technology |
| spellingShingle | Materials Science and Engineering. Narula, Rohit Double resonance Raman spectra of graphene : a full 2D calculation |
| title | Double resonance Raman spectra of graphene : a full 2D calculation |
| title_full | Double resonance Raman spectra of graphene : a full 2D calculation |
| title_fullStr | Double resonance Raman spectra of graphene : a full 2D calculation |
| title_full_unstemmed | Double resonance Raman spectra of graphene : a full 2D calculation |
| title_short | Double resonance Raman spectra of graphene : a full 2D calculation |
| title_sort | double resonance raman spectra of graphene a full 2d calculation |
| topic | Materials Science and Engineering. |
| url | http://hdl.handle.net/1721.1/42161 |
| work_keys_str_mv | AT narularohit doubleresonanceramanspectraofgrapheneafull2dcalculation |