Paper Title:
Controlled Growth of ZnO Nanocrystals on the Surface of SiO2 Spheres
  Abstract

The “islands” of ZnO nanocrystals on amorphous monodisperse 200 nm SiO2 spheres (core-shell particles) were obtained by simple one-step technique based on low-temperature crystallization from liquid phase. The influence of starting reagents types and concentration of zinc ions in the reaction mixture on the morphology of ZnO shells obtained was studied. Crystalline structure of ZnO nanocrystals obtained was proofed by the X-ray diffraction data. The average diameter of ZnO nanocrystals on SiO2 spheres is 10 nm according to X-ray diffraction (XRD) and transmission electron microscopy (TEM) data. It was shown that SiO2/ZnO particles obtained have high luminescence characteristics. Photoluminescence spectra of core-shell SiO2/ZnO particles show two emission peaks centred at 386 nm and 570 nm. Core-shell SiO2/ZnO particles obtained are perspective for active photonic crystals creation for UV-spectral region.

  Info
Periodical
Solid State Phenomena (Volume 151)
Edited by
Erich Kny
Pages
264-268
DOI
10.4028/www.scientific.net/SSP.151.264
Citation
Y. V. Yermolayeva, Y. N. Savin, A. V. Tolmachev, "Controlled Growth of ZnO Nanocrystals on the Surface of SiO2 Spheres", Solid State Phenomena, Vol. 151, pp. 264-268, 2009
Online since
April 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: W.Q. Peng, S.C. Qu, G.W. Cong, Z.G. Wang
Abstract:Using a solution-based chemical method, we have prepared ZnS nanocrystals doped with high concentration of Mn2+. The X-ray diffraction...
1795
Authors: Xiao Min Meng, Ai Min He
Abstract:Nano-sized hollow spheres self-assembled by ZnO nanocrystals have been prepared by microemulsion method with dodecyl benzene sulfonic acid...
2019
Authors: Zhen Li, Li Wei Peng, Fei Gao, Deng Yu Pan, Ming Hong Wu
Micro/Nano Materials
Abstract:In this paper, a rapid, facile and green strategy — electron beam irradiation has been developed to prepare CdSe nanoparticles. 10 mA GJ-2-II...
697
Authors: Xu Yao Xu, Lin Ma, Xiao Ping Zhou
Chapter 10: Material Preparation, Properties and Failure
Abstract:LaF3 and LaF3: Re (Re= Ce3+, Eu3+ and Tb3+) nanocrystals have been successfully...
1547
Authors: Jin Hua Ma, Chang Zheng Wang, Chang Yong Sun
Chapter 2: Micro/Nano Materials and Ceramic
Abstract:Abstract. By using Na2S•9H2O as source precursor and citric acid as stabilizer, ZnS:Mn nanocrystallines were synthesized by solvothermal...
192