Paper Title:
Synthesis Methods Evaluation for Preparation of the Zno:Co Diluted Magnetic Semiconductor (DMS)
  Abstract

Diluted magnetic semiconductors (DMS), which have both semiconducting and magnetic properties, are those in which transitions metal ions substitute cations of host semiconductor materials [1]. There is a great interest for DMS for use as the material of spintronics. In this study is reported the structural and morphologic characterization of Zn1.95Co0.05O nanoparticles obtained by Pechini method and combustion reaction. The powders resulting were characterized by X-ray diffraction (XRD) for determination of the phases, crystalline phase and lattice parameter; nitrogen adsorption by BET for determination of the specific superficial area and calculation the particle size from the superficial area and scanning electron microscopy (SEM) for morphologic analysis. The XRD results demonstrated the viability of obtaining crystalline and nanosize powders by the both synthesis routes. For all samples the average crystallite sizes was nanosized, but the powders obtained by reaction combustion is smaller. The SEM micrographs shows that the powders obtained for both syntheses are constituted of soft agglomerates.

  Info
Periodical
Materials Science Forum (Volumes 591-593)
Edited by
Lucio Salgado and Francisco Ambrozio Filho
Pages
387-391
DOI
10.4028/www.scientific.net/MSF.591-593.387
Citation
L. Gama, M.A. Ribeiro, D. A. Vieira, A.M.C. Santos, R. H. G. A. Kiminami, I.T. Weber, A. C. F. de Melo Costa, "Synthesis Methods Evaluation for Preparation of the Zno:Co Diluted Magnetic Semiconductor (DMS)", Materials Science Forum, Vols. 591-593, pp. 387-391, 2008
Online since
August 2008
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