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Confinement Effects on Optical Phonons in Polar Tetrapod Nanocrystals Detected by Resonant Inelastic Light Scattering
Krahne, Roman, Chilla, Gerwin, Schüller, Christian, Carbone, Luigi, Kudera, Stefan, Mannarini, Gianandrea, Manna, Liberato, Heitmann, Detlef and Cingolani, Roberto (2006) Confinement Effects on Optical Phonons in Polar Tetrapod Nanocrystals Detected by Resonant Inelastic Light Scattering. Nano Letters 6 (3), pp. 478-482.Date of publication of this fulltext: 05 Aug 2009 13:32
Article
DOI to cite this document: 10.5283/epub.1782
Abstract
We investigated CdTe nanocrystal tetrapods of different sizes by resonant inelastic light scattering at room temperature and under cryogenic conditions. We observe a strongly resonant behavior of the phonon scattering with the excitonic structure of the tetrapods. Under resonant conditions we detect a set of phonon modes that can be understood as confined longitudinal-optical phonons, surface- optical phonons, and transverse-optical phonons in a nanowire picture.
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| Item type | Article |
| Journal or Publication Title | Nano Letters |
| Volume: | 6 |
|---|---|
| Number of Issue or Book Chapter: | 3 |
| Page Range: | pp. 478-482 |
| Date | 2006 |
| Institutions | Physics > Institute of Experimental and Applied Physics > Chair Professor Lupton > Group Christian Schüller |
| Dewey Decimal Classification | 500 Science > 530 Physics |
| Status | Published |
| Refereed | Yes, this version has been refereed |
| Created at the University of Regensburg | Yes |
| Item ID | 1782 |
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