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Type: Artigo de periódico
Title: Size effects on the phonon spectra of quantum dots in CdTe-doped glasses
Author: dePaula, AM
Barbosa, LC
Cruz, CHB
Alves, OL
Sanjurjo, JA
Cesar, CL
Abstract: We studied the confinement effects on the phonon Spectra of CdTe quantum dots by means of resonant Raman scattering measurements. The spectra show clearly longitudinal optical phonons, surface phonons and some of their overtone combinations. We show that the scattering due to surface phonons increases as the quantum dot size decreases. The results are obtained by tuning the laser excitation energy to resonance for quantum dots of different sizes inside the broad size distribution in CdTe-doped glasses. (C) 1996 American Institute of Physics.
Editor: Amer Inst Physics
Rights: aberto
Identifier DOI: 10.1063/1.118059
Date Issue: 1996
Appears in Collections:Unicamp - Artigos e Outros Documentos

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