Citation
A. Milekhin et al., Optical investigation of CdS quantum dots in Langmuir-Blodgett films, APPL PHYS A, 69(1), 1999, pp. 97-100
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
ISSN journal
09478396
→ ACNP
Volume
69
Issue
1
Year of publication
1999
Pages
97 - 100
Database
ISI
SICI code
0947-8396(199907)69:1<97:OIOCQD>2.0.ZU;2-X
Abstract
Structures with CdS quantum dots produced by the Langmuir-Blodgett (LB) tec
hnique were investigated by Raman, IR, and UV spectroscopies. The confineme
nt effect of longitudinal optical (LO) phonons in CdS quantum dots was inve
stigated by Raman spectroscopy. Surface vibrational modes of CdS quantum do
ts were observed in IR spectra. It was shown experimentally that the freque
ncy of the surface vibrational modes depends on the properties of the surro
unding media. An average size of CdS quantum dots of about 3-6.4 nm was obt
ained from the analysis of UV measurements.