Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Electrophoretic Deposition of Flake-Shaped ZnO Nanoparticles
Year:2010
Research Areas
  • Materials for electric engineering and electronics
Information
Abstract
Abstract: ZnO films have been grown on different substrates by using a variety of fabrication techniques. In the present work, we discuss the results on the preparation of ZnO films by electrophoretic deposition (EPD) starting from synthetic flake-shaped nanoparticles. The critical parameters related to the preparation of aqueous colloidal suspensions have been analyzed. Dispersing conditions have been evaluated in terms of particle/cluster morphology, electrokinetic properties, i.e., particle size distribution and cationic surface functionality, and zeta potential. EPD parameters for film assembly have been selected. Depending on both the particle morphology and the solid's concentration in the colloidal system, different orientation effects have been observed in the built structure. For a low ZnO concentration, independent clusters arrive at the Ni substrate where the large dimension of the ZnO flakelike nanoparticles align with the surface of the substrate. When the solid's concentration increases, such ordering is not observed. The electrical resistivity measured by the four-point probe method evidences the presence of a ZnO film with unusually high electrical resistivity for undoped ZnO. (C) 2009 The Electrochemical Society. [DOI: 10.1149/1.3247343] All rights reserved.
International
Si
JCR
Si
Title
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISBN
0013-4651
Impact factor JCR
2,241
Impact info
Volume
157
10.1149/1.3247343
Journal number
1
From page
H55
To page
H59
Month
ENERO
Ranking
Participants
  • Autor: Marina Villegas Gracia (UPM)
  • AUTOR: M VERDE (ICV-CSIC)
  • Autor: Amador Caballero Cuesta (UPM)
  • AUTOR: YOLANDA IGLESIAS (ICV-CSIC)
  • AUTOR: B FERRARI (ICV-CSIC)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Propiedades ópticas, eléctricas y magnéticas de materiales y sus aplicaciones (POEMMA)
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)