Electrophoretic Deposition of Transparent ZnO Thin Films from Highly Stabilized Colloidal Suspensions

Verde Lozano, María and Peiteado, Marco and Caballero Cuesta, Amador and Villegas Gracia, Marina and Ferrari Fernández, Begoña (2012). Electrophoretic Deposition of Transparent ZnO Thin Films from Highly Stabilized Colloidal Suspensions. "Journal of Colloid and Interface Science", v. 373 (n. 1); pp. 27-33. ISSN 0021-9797. https://doi.org/10.1016/j.jcis.2011.09.039.

Description

Title: Electrophoretic Deposition of Transparent ZnO Thin Films from Highly Stabilized Colloidal Suspensions
Author/s:
  • Verde Lozano, María
  • Peiteado, Marco
  • Caballero Cuesta, Amador
  • Villegas Gracia, Marina
  • Ferrari Fernández, Begoña
Item Type: Article
Título de Revista/Publicación: Journal of Colloid and Interface Science
Date: May 2012
ISSN: 0021-9797
Volume: 373
Subjects:
Freetext Keywords: ZnO, Nanoflakes, Stabilization, Polyethylenimine, Electrophoretic deposition, Thin films
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The parameters that control the stability of ZnO-nanoparticles suspensions and their deposition by electrophoretic deposition were studied, so as to organize the assembly and compaction of nanoparticles. The addition of cationic polyelectrolyte - Polyethylenimine (PEI) - with different molecular weights was investigated, in order to study their effectiveness and the influence of the molecular weight of the organic chain on suspensions dispersion. It was found that PEI with the highest molecular weight provided better dispersion conditions. Cathodic EPD was performed under previously optimized suspensions conditions and over electropolished stainless steel substrates. Experimental results showed that the EPD process in these conditions allows obtaining dense transparent ZnO thin films. Deposition times and intensities were optimized by analyzing the resulting thin films characteristics. Finally, the deposits were characterized by FE-SEM, AFM, and different spectroscopic techniques.

More information

Item ID: 19043
DC Identifier: http://oa.upm.es/19043/
OAI Identifier: oai:oa.upm.es:19043
DOI: 10.1016/j.jcis.2011.09.039
Official URL: http://www.sciencedirect.com/science/article/pii/S0021979711011763
Deposited by: Memoria Investigacion
Deposited on: 10 Sep 2013 17:58
Last Modified: 21 Apr 2016 17:17
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