Photoluminescence of zinc oxide supported on submicron silica particles
authors Neves, MC; Trindade, T; Peres, M; Wang, J; Soares, MJ; Neves, A; Monteiro, T
nationality International
journal MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS
author keywords ZnO; nanocomposites; optical properties
keywords ZNO THIN-FILMS; DEPOSITION; SPHERES; GREEN
abstract Synthetic well-defined SiO2 particles were used as substrates to grow ZnS nanoparticles at the silica surfaces. Such SiO2/ZnS composite particles were investigated as precursors to produce ZnO supported on submicron silica, by a simple calcination process. The structural and optical properties of the supported ZnO phase are reported. The ZnO emission is dominated by the typical green band at 2.5 eV commonly associated with intrinsic defects. (c) 2005 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 0928-4931
year published 2005
volume 25
issue 5-8
beginning page 654
ending page 657
digital object identifier (doi) 10.1016/j.msec.2005.06.019
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000233784800021
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