Growth of cadmium selenide nanocrystals on submicron silica

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.

keywords

SINGLE-MOLECULE PRECURSORS; CDSE; BISMUTH(III); DEPOSITION; COMPLEXES; CRYSTAL; SEMICONDUCTORS; PARTICLES; CHEMISTRY; BI2S3

subject category

Crystallography; Materials Science; Physics

authors

Neves, MC; Soares, J; Hempelmann, R; Monteiro, T; Trindade, T

our authors

Share this project:

Related Publications

We use cookies for marketing activities and to offer you a better experience. By clicking “Accept Cookies” you agree with our cookie policy. Read about how we use cookies by clicking "Privacy and Cookie Policy".