EXAFS STUDY OF FUNCTIONALIZED NANOCLUSTERS AND NANOCLUSTER ASSEMBLIES

Authors
CHEMSEDDINE A FIEBERERDMANN M HOLUBKRAPPE E BOULMAAZ S
Citation
A. Chemseddine et al., EXAFS STUDY OF FUNCTIONALIZED NANOCLUSTERS AND NANOCLUSTER ASSEMBLIES, Zeitschrift fur Physik. D, Atoms, molecules and clusters, 40(1-4), 1997, pp. 566-569
Citations number
8
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Zeitschrift fur Physik. D, Atoms, molecules and clusters → ACNP
ISSN journal
01787683
Volume
40
Issue
1-4
Year of publication
1997
Pages
566 - 569
Database
ISI
SICI code
0178-7683(1997)40:1-4<566:ESOFNA>2.0.ZU;2-Q
Abstract
Extended X-ray absorption fine structure spectroscopy and X-ray diffra ction were used to investigate the structure of CdS nanocrystals cappe d with different ligands. Nanocrystals capped with acetate and thiolat e do exhibit the rock-salt structure, a high pressure type phase. Thes e nanocsystals undergo a rock-salt to hawleyite transition after the t hermal removal of the ligands at 200 degrees C. Changes in coordinatio n and distances as well as second-neighbor shells in differently cappe d CdS clusters are discussed in comparison with ZnS-clusters.