Published July 2011
| Version v1
Journal article
Vibrational Raman spectra of CdSx Se1-x magic-size nanocrystals
Creators
- 1. V.Ye. Lashkaryov Institute of Semiconductor Physics of Natl. Acad. Sci. of Ukraine, Prospekt Nauky 45, 03028 Kyiv (Ukraine)
- 2. P. N. Lebedev Physical Institute, Russian Academy of Sciences, Leninsky Prosp. 53, 119991 Moscow (Russian Federation)
- 3. L.V. Pysarzhevskiy Institute of Physical Chemistry of Natl. Acad. Sci. of Ukraine, Prospekt Nauky 31, 03028 Kyiv (Ukraine)
Description
Resonant Raman scattering spectra of ultrasmall (<2 nm) magic-size nanocrystals (NCs) are reported. The spectra of CdS and CdSx Se1-x NCs, resonantly excited with 325 nm and 442 nm laser lines, correspondingly, reveal broad features in the range of bulk optical phonons. The relatively large width, ∝50 cm-1, and downward shift, ∝20 cm-1, of the Raman bands with respect to the longitudinal optical phonon in bulk crystals and large NCs are discussed based on the breaking of the translational symmetry and bond distortion in these ultrasmall NCs. (copyright 2011 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)
Availability note (English)
Available from: http://dx.doi.org/10.1002/pssr.201105219Additional details
Identifiers
Publishing Information
- Journal Title
- Physica Status Solidi rrl
- Journal Volume
- 5
- Journal Issue
- 7
- Journal Page Range
- p. 250-252
- ISSN
- 1862-6254
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 42082149
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS; S77: NANOSCIENCE AND NANOTECHNOLOGY;
- Descriptors DEI
- ABSORPTION SPECTRA; ATOMIC CLUSTERS; CADMIUM SELENIDES; CADMIUM SULFIDES; CHEMICAL BONDS; CRYSTALS; ENERGY SPECTRA; EV RANGE 01-10; EXCITATION; LASER RADIATION; LATTICE VIBRATIONS; LINE WIDTHS; NANOSTRUCTURES; NEAR ULTRAVIOLET RADIATION; PHONONS; PHOTON COLLISIONS; RAMAN EFFECT; RAMAN SPECTRA; RESONANCE SCATTERING; SOLID CLUSTERS; SPECTRAL SHIFT; SYMMETRY BREAKING; ULTRAVIOLET SPECTRA; VIBRATIONAL STATES; VISIBLE RADIATION; VISIBLE SPECTRA
- Descriptors DEC
- CADMIUM COMPOUNDS; CHALCOGENIDES; COLLISIONS; ELECTROMAGNETIC RADIATION; ENERGY LEVELS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EV RANGE; EXCITED STATES; INELASTIC SCATTERING; INORGANIC PHOSPHORS; PHOSPHORS; QUASI PARTICLES; RADIATIONS; SCATTERING; SELENIDES; SELENIUM COMPOUNDS; SPECTRA; SULFIDES; SULFUR COMPOUNDS; ULTRAVIOLET RADIATION
Optional Information
- Notes
- With 2 figs., 43 refs.