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Confinement Effects on Optical Phonons in Polar Tetrapod Nanocrystals Detected by Resonant Inelastic Light Scattering

Krahne, Roman and Chilla, Gerwin and Schüller, Christian and Carbone, Luigi and Kudera, Stefan and Mannarini, Gianandrea and Manna, Liberato and 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.

Item Type:	Article
Institutions:	Physics > Institute of Experimental and Applied Physics > Chair Professor Lupton > Group Christian Schüller
Projects:	Graduiertenkolleg Nichtlinearität und Nichtgleichgewicht
Subjects:	500 Science > 530 Physics
Status:	Published
Refereed:	Yes, this version has been refereed
Created at the University of Regensburg:	Yes
Owner:	Redakteur Physik
Deposited On:	20 Mar 2007
Last Modified:	20 Jul 2011 23:02
Item ID:	1782

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