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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.

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Date of publication of this fulltext: 05 Aug 2009 13:32

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
Owner only: item control page

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