Published July 30, 2008
| Version v1
Journal article
Size effects on Raman spectra of small CdSe nanoparticles in polymer films
- 1. Institute of Semiconductors Physics of National Academy of Sciences of Ukraine, Prospekt Nauky 41, 03028 Kyiv (Ukraine)
- 2. Institute of Physical Chemistry, National Academy of Sciences of Ukraine, Prospekt Nauky 31, 03028 Kyiv (Ukraine)
- 3. Institut fuer Physik, Technische Universitaet, Reichenhainer Strasse 70, D-09107 Chemnitz (Germany)
Description
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 d-bar and size distribution Δd using a set of excitation wavelengths. The effect of size selection on the estimation of d-bar 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 I2LO/ILO ratio for 2-5 nm NPs a minor effect of d-bar on the electron-phonon coupling strength in this d-bar range is supposed
Availability note (English)
Available from http://dx.doi.org/10.1088/0957-4484/19/30/305707Additional details
Identifiers
- DOI
- 10.1088/0957-4484/19/30/305707;
- PII
- S0957-4484(08)73044-7;
Publishing Information
- Journal Title
- Nanotechnology (Print)
- Journal Volume
- 19
- Journal Issue
- 30
- Journal Page Range
- [6 p.]
- ISSN
- 0957-4484
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39111684
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CADMIUM SELENIDES; DISTRIBUTION; ELECTRON-PHONON COUPLING; EXCITATION; FILMS; NANOSTRUCTURES; PARTICLES; POLYMERS; RAMAN EFFECT; RAMAN SPECTRA; WAVELENGTHS
- Descriptors DEC
- CADMIUM COMPOUNDS; CHALCOGENIDES; COUPLING; ENERGY-LEVEL TRANSITIONS; SELENIDES; SELENIUM COMPOUNDS; SPECTRA