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First principles calculations of the optical properties of CxNy single walled nanotubes.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Jana, Debnarayan Chakraborti, Anirban Chen, Li-Chyong Chen, Chun Wei Chen, Kuei-Hsien |
| Copyright Year | 2009 |
| Abstract | The optical properties of (8, 0) single walled carbon nanotubes alloyed with nitrogen (N) have been examined using relaxed carbon-carbon (C-C) bond length ab initio density functional theory (DFT) calculations in the long wavelength limit. The maximum value of the absorption coefficient is shown to depend strongly on the concentration of N in a non-linear way as well as on the direction of polarization. The reflectivity at normal incidence vanishes at some unique concentration of N. It is also observed that the peak of the loss function (in parallel polarization and unpolarized cases) shifts to a higher frequency indicating the enhanced metallic character. The observed variation of the plasma resonance frequencies with N concentration indicates the existence of a unique maximum for parallel polarization and a step function like behavior for the unpolarized situation with concentration. |
| Starting Page | 175701 |
| Ending Page | 175701 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1088/0957-4484/20/17/175701 |
| PubMed reference number | 19420596 |
| Journal | Medline |
| Volume Number | 20 |
| Issue Number | 17 |
| Alternate Webpage(s) | https://www.jnu.ac.in/Faculty/anirban/publications/pubpaper23.pdf |
| Alternate Webpage(s) | https://doi.org/10.1088/0957-4484%2F20%2F17%2F175701 |
| Journal | Nanotechnology |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
