Growth of cadmium selenide nanocrystals on submicron silica

authors	Neves, MC; Soares, J; Hempelmann, R; Monteiro, T; Trindade, T
nationality	International
journal	JOURNAL OF CRYSTAL GROWTH
author keywords	nanostructures; cadmium selenide; nanomaterials; semiconducting materials
keywords	SINGLE-MOLECULE PRECURSORS; CDSE; BISMUTH(III); DEPOSITION; COMPLEXES; CRYSTAL; SEMICONDUCTORS; PARTICLES; CHEMISTRY; BI2S3
abstract	Cadmium selenide nanocrystals were grown over silica surfaces using a one-step synthetic method involving the thermal degradation of the single-molecule precursor [Cd(Se2CNEt2)(2)], Et=C2H5. The X-ray powder diffraction patterns for the SiO2/CdSe nanocomposites show diffraction peaks consistent with the presence of hexagonal-CdSe. Scanning and transmission electron microscopy show inorganic composite particles formed by islands of Use nanocrystals at the SiO2 surfaces. A series of SiO2/CdSe particles were obtained in which the samples show quantum size effects in their optical spectra. (c) 2005 Elsevier B.V. All rights reserved.
publisher	ELSEVIER SCIENCE BV
issn	0022-0248
year published	2005
volume	279
issue	3-4
beginning page	433
ending page	438
digital object identifier (doi)	10.1016/j.jcrysgro.2005.02.057
web of science category	Crystallography; Materials Science, Multidisciplinary; Physics, Applied
subject category	Crystallography; Materials Science; Physics
unique article identifier	WOS:000229686200028