Pullini, D.; Pruna, AI.; Zanin, S.; Busquets Mataix, DJ. (2012). High-Efficiency Electrodeposition of Large Scale ZnO Nanorod Arrays for Thin Transparent Electrodes. Journal of The Electrochemical Society. 159(2):45-51. doi:10.1149/2.093202jes
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/31974
Title:
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High-Efficiency Electrodeposition of Large Scale ZnO Nanorod Arrays for Thin Transparent Electrodes
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Author:
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Pullini, D.
Pruna, Alina Iuliana
Zanin, Stefano
Busquets Mataix, David Jerónimo
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UPV Unit:
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Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials
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Issued date:
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Abstract:
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In the present work an effective technique to synthesize large-scale c-axis oriented ZnO nanorod (NR) arrays is presented. The manuscript reports a single-step cathodic electrodeposition, either in aqueous and organic ...[+]
In the present work an effective technique to synthesize large-scale c-axis oriented ZnO nanorod (NR) arrays is presented. The manuscript reports a single-step cathodic electrodeposition, either in aqueous and organic electrolytes, to fill up ultra-thin anodic nanoporous alumina templates. Prior to growing, self-ordered hexagonal array of cylindrical nanopores have been fabricated by anodizing Al thin films previously deposited onto ITOglass substrates. The diameter and the aspect ratio of the vertically aligned nanopores are about 60 nm and 8:1, respectively. The results of this work demonstrate that using dimethyl sulfoxide (DMSO) as an electrolyte leads to a growth more homogeneous in shape and crystallinity, and with 60 deposition efficiency - the highest by now in literature. This fact is most probably due to a better infiltration of the alumina nanopores by this electrolyte. SEM and XRD analysis were employed for the study of morphology and crystalline structure of the obtained ZnO NR. These measurements showed furthermore that ZnO nanorod arrays are uniformly embedded into the hexagonally ordered nanopores of the anodic alumina membrane. DMSO proved to be an optimal electrolyte to obtain single-crystalline ZnO NR arrays, highly transparent in visible light range (80 transmittance). © 2011 The Electrochemical Society.
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Subjects:
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Al thin films
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Anodic alumina membranes
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Cathodic electrodeposition
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Crystalline structure
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Crystallinities
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Cylindrical nanopores
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Deposition efficiencies
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Hexagonal arrays
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Nanoporous alumina templates
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Organic electrolyte
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Single-crystalline
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Single-step
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Transparent electrode
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Ultra-thin
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Vertically aligned
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Visible light
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XRD analysis
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ZnO
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ZnO nanorod
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ZnO nanorod arrays
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Alumina
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Aspect ratio
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Crystalline materials
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Dimethyl sulfoxide
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Electrodeposition
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Electrolytes
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Film growth
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Nanopores
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Organic solvents
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Zinc oxide
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Nanorods
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Journal of The Electrochemical Society. (issn:
0013-4651
)
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DOI:
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10.1149/2.093202jes
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Publisher:
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Electrochemical Society
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Publisher version:
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http://dx.doi.org/10.1149/2.093202jes
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Project ID:
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info:eu-repo/grantAgreement/EC//MRTN-CT-2006-035884/EU//NANOMATCH/
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Thanks:
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The authors thank for the financial support by the European Commission, DG Research through the program PEOPLE, by the project no. MRTN-CT-2006-035884.
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Type:
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Artículo
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