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.
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Other URL: http://pubs.acs.org/cgi-bin/abstract.cgi/nalefd/2006/6/i03/abs/nl0524492.html, http://pubs.acs.org/cgi-bin/article.cgi/nalefd/2006/6/i03/pdf/nl0524492.pdf
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 |
|---|---|
| Date: | 2006 |
| Institutions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Lupton > Group Christian Schüller |
| Projects: | Graduiertenkolleg Nichtlinearität und Nichtgleichgewicht |
| 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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