Raman scattering in CdTe1-xSex and CdS1-xSex nanocrystals embedded in glass |
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| Affiliation: | 1. Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 573, Pardubice 532 10, Czech Republic;2. Center of Materials and Nanotechnology, Faculty of Chemical Technology, University of Pardubice, namesti Cs. Legii 565, Pardubice 530 02, Czech Republic;1. Austin Peay State University, Clarksville, TN 37075, USA;2. Faculty of Chemical Technology, University of Pardubice, 53210 Pardubice, Czech Republic;3. International Materials Institute for New Functionality in Glass, Lehigh University, Bethlehem, PA 18015, USA |
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| Abstract: | Raman scattering on a series of glass composite samples containing CdTe1-xSex and CdS1-xSex nanocrystals with radii in the range [2nm, 12.5nm] is reported. By properly considering the size dependence of strain and confinement effects, the chemical composition and the lattice contraction is assessed. The polarization analysis of the scattering indicates that the Fröhlich electron-phonon interaction increases at decreasing the nanocrystal size. |
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