Paper Title:
Synthesis of ZnO Particles by Electrolysis
  Abstract

ZnO with a good crystallinity and visible photoluminescence at room temperature around 518 nm and 605 nm obtained by an electrolytic method using urea and zinc nitrate is presented. An electrolytic Teflon cell was used for the process using tungsten wire and aluminum foil as electrodes, the tungsten wire was introduced in a solution of water, zinc nitrate and urea. The electrical potential was modified, keeping constant the growth time. As substrate and cathode a 1-3 -cm, (100), n type, silicon wafer was used. The crystalline structure and photoluminescence showed interesting changes when the electrical potential was modified. XRD (X Ray Diffraction) performed on the films showed characteristic diffraction peaks of ZnO obtained in other works. The amplitude of these peaks changed with the electrical potential applied, with a predominance of the (100), (002) and (101) planes. The photoluminescence (PL) bands changed with the electrical conditions too. At low electrical currents a predominance of the green band (520 nm) was observed, and another band around 600 nm appeared from high current conditions, this behavior can be associated with different defects generated during the grow process. From these results we conclude that the change in the electrical current produces changes in the structural and optical characteristics of the material.

  Info
Periodical
Materials Science Forum (Volumes 636-637)
Edited by
Luís Guerra ROSA and Fernanda MARGARIDO
Pages
418-422
DOI
10.4028/www.scientific.net/MSF.636-637.418
Citation
G. García-Salgado, R. López, F.G. Nieto-Caballero, T. Díaz-Becerril, H. Juárez, E. Rosendo-Andrés, A. Coyopol, "Synthesis of ZnO Particles by Electrolysis", Materials Science Forum, Vols. 636-637, pp. 418-422, 2010
Online since
January 2010
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: Bajirao K. Sonawane, Mukesh P. Bhole, Dnyaneshwar S. Patil
Abstract:Single crystalline a-axis Mg doped ZnO thin films (MgxZn1-xO) were successfully prepared by sol-gel spin coating method using Zinc acetate,...
2915
Authors: Chien Chen Diao, Chao Chin Chan, Chia Ching Wu, Cheng Fu Yang
Abstract:“GfE Coating Materials Company” had developed a novel AZOY transparent conducting oxide (TCO) material that used ZnO as raw material and...
653
Authors: Azlinda Ab Azlinda, Zuraida Khusaimi, Saifollah Abdullah, Mohamad Rusop
Abstract:Zinc oxide (ZnO) nanostructures prepared by immersion method were successfully grown on gold-seeded silicon substrate using Zinc nitrate...
45
Authors: P. Suresh Kumar, A. Dhayal Raj, R. Suresh, D. Mangalaraj
II. Structural and Optical Properties of Nanocrystalline materials
Abstract:Intensive and innovative research is focused on the preparation of various nanostructured materials especially nanostructured metal oxides as...
86