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Shape Dependence of the Scattering Processes of Optical Phonons in Colloidal Nanocrystals Detected by Raman Spectroscopy

Krahne, Roman and Chilla, Gerwin and Schüller, Christian and Kudera, Stefan and Tari, Davide and De Giorgi, Milena and Heitmann, Detlef and Cingolani, Roberto and Manna, Liberato (2006) Shape Dependence of the Scattering Processes of Optical Phonons in Colloidal Nanocrystals Detected by Raman Spectroscopy. Journal of Nanoelectronics and Optoelectronics 1 (1), pp. 104-107.

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Abstract

We investigated by Raman spectroscopy optical phonon excitations in colloidal CdTe nanocrystals of different shapes. The phonon spectra at excitation energies slightly below the absorption onset showed a strong dependence on the nanocrystal shape. For spherical nanocrystals, we detected broad longitudinal-optical phonon-scattering peaks that were blue shifted from the longitudinal-optical phonon ...

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Item Type:Article
Date:April 2006
Institutions:Physics > Institute of Experimental and Applied Physics > Chair Professor Lupton > Group Christian Schüller
Identification Number:
ValueType
10.1166/jno.2006.012DOI
Related URLs:
URLURL Type
http://www.ingentaconnect.com/content/asp/jno/2006/00000001/00000001/art00012Publisher
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Owner: Martin Kaiser
Deposited On:02 Oct 2009 08:16
Last Modified:02 Oct 2009 08:16
Item ID:9622
Owner Only: item control page
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