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Confined optical vibrations in CdTe quantum dots and clusters
Rolo, Anabela G.; Vasilevskiy, Mikhail; Gaponik, Nikolai; Talapin, Dmitrii; Rogach, Andrey; Gomes, M. J. M.Absorption of far-infrared (FIR) radiation and Raman scattering in CdTe nano-crystals (spherical quantum dots (QDs) of several nanometers in size) and Cd54Te32(SCH2CH2OH)8- 32 clusters prepared by colloidal synthesis were studied. Raman spectra of both QDs and clusters are dominated by a peak situated slightly below the bulk CdTe LO phonon frequency. Experimental FIR transmittance spectra of films containing Cd...
Data: 2002
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Origem: RepositóriUM - Universidade do Minho
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