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

Verde Lozano, María; Peiteado, Marco; Caballero Cuesta, Amador; Villegas Gracia, Marina y 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.

Descripción

Título: Electrophoretic Deposition of Transparent ZnO Thin Films from Highly Stabilized Colloidal Suspensions
Autor/es:
  • Verde Lozano, María
  • Peiteado, Marco
  • Caballero Cuesta, Amador
  • Villegas Gracia, Marina
  • Ferrari Fernández, Begoña
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Colloid and Interface Science
Fecha: Mayo 2012
Volumen: 373
Materias:
Palabras Clave Informales: ZnO, Nanoflakes, Stabilization, Polyethylenimine, Electrophoretic deposition, Thin films
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Otro
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

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.

Más información

ID de Registro: 19043
Identificador DC: http://oa.upm.es/19043/
Identificador OAI: oai:oa.upm.es:19043
Identificador DOI: 10.1016/j.jcis.2011.09.039
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0021979711011763
Depositado por: Memoria Investigacion
Depositado el: 10 Sep 2013 17:58
Ultima Modificación: 21 Abr 2016 17:17
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