FLUORESCENCE SPECTROSCOPY ON SINGLE CDS NANOCRYSTALS

Citation
J. Tittel et al., FLUORESCENCE SPECTROSCOPY ON SINGLE CDS NANOCRYSTALS, JOURNAL OF PHYSICAL CHEMISTRY B, 101(16), 1997, pp. 3013-3016
Citations number
34
Categorie Soggetti
Chemistry Physical
Journal title
JOURNAL OF PHYSICAL CHEMISTRY B
ISSN journal
15206106 → ACNP
Volume
101
Issue
16
Year of publication
1997
Pages
3013 - 3016
Database
ISI
SICI code
1089-5647(1997)101:16<3013:FSOSCN>2.0.ZU;2-I
Abstract
By use of low-temperature (20 K) confocal microscopy, fluorescence spe ctra of isolated single CdS nanocrystals have been recorded. The narro west measured line width of the main fluorescence band has been determ ined to be about 5 meV at the lowest excitation intensities. At higher intensities at least three additional observations are made: the main fluorescence band broadens, a line to the blue of the main peak evolv es, and a peak due to the coupling to a longitudinal optical phonon ap pears.