title: Size effects on Raman spectra of small CdSe nanoparticles in polymer films.
abstract: The results of a resonant Raman scattering (RRS) study of polymer-stabilized colloidal CdSe nanoparticles (NPs) are reported. The size-selective nature of the RRS is demonstrated by analysing the NP ensembles with different average size [Formula: see text] and size distribution Δd using a set of excitation wavelengths. The effect of size selection on the estimation of [Formula: see text] and Δd values from the RRS spectra is discussed, as well as some peculiarities of RRS on surface optical phonons. From the experimentally observed small variation of the I(2LO)/I(LO) ratio for 2-5 nm NPs a minor effect of [Formula: see text] on the electron-phonon coupling strength in this [Formula: see text] range is supposed.
authors.affiliation: Institute of Semiconductors Physics of National Academy of Sciences of Ukraine, Prospekt Nauky 41, 03028 Kyiv, Ukraine.
authors.forename: V M
authors.initials: VM
authors.lastname: Dzhagan
authors.forename: M
authors.initials: M
authors.lastname: Ya Valakh
authors.forename: A E
authors.initials: AE
authors.lastname: Raevskaya
authors.forename: A L
authors.initials: AL
authors.lastname: Stroyuk
authors.forename: S Ya
authors.initials: SY
authors.lastname: Kuchmiy
authors.forename: D R T
authors.initials: DR
authors.lastname: Zahn