Photoluminescence intensity of single-wall carbon nanotubes
| Autor: | Ge. G. Samsonidze, Riichiro Saito, Kentaro Sato, Ado Jorio, M. S. Dresselhaus, Yuhei Miyauchi, Shigeo Maruyama, Alexander Grüneis, G. Dresselhaus, Jie Jiang, Yutaka Oyama |
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| Rok vydání: | 2006 |
| Předmět: |
Photoluminescence
Materials science Condensed Matter::Other Analytical chemistry chemistry.chemical_element Nanotechnology General Chemistry Carbon nanotube Chemical vapor deposition Condensed Matter::Mesoscopic Systems and Quantum Hall Effect law.invention Condensed Matter::Materials Science chemistry law General Materials Science Luminescence Chirality (chemistry) Absorption (electromagnetic radiation) Carbon Intensity (heat transfer) |
| Zdroj: | Carbon. 44:873-879 |
| ISSN: | 0008-6223 |
| DOI: | 10.1016/j.carbon.2005.10.024 |
| Popis: | The photoluminescence (PL) intensity of a single-wall carbon nanotube (SWNT) is calculated for each ( n , m ) by multiplying the photon-absorption, relaxation and photon-emission matrix elements. The intensity depends on chirality and “type I vs type II” for smaller diameter semiconducting SWNTs (less than 1 nm). By comparing the calculated results with the experimental PL intensity of SWNTs prepared by chemical vapor deposition at different temperatures, we find that the abundance of ( n , m ) nanotubes with smaller diameters should exhibit a strong chirality dependence, which may be related to the stability of their caps. |
| Databáze: | OpenAIRE |
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