Preparation and characterization of n-type conductive (Al, Co) co-doped ZnO thin films deposited by sputtering from aerogel nanopowders
Identifieur interne : 000826 ( Main/Curation ); précédent : 000825; suivant : 000827Preparation and characterization of n-type conductive (Al, Co) co-doped ZnO thin films deposited by sputtering from aerogel nanopowders
Auteurs : L. El Mir [Tunisie] ; Z. Ben Ayadi [Tunisie] ; M. Saadoun [Tunisie] ; K. Djessas [France] ; H. J. Von Bardeleben [France] ; S. Alaya [Tunisie]Source :
- Applied surface science [ 0169-4332 ] ; 2007.
Descripteurs français
- Pascal (Inist)
- Préparation, Semiconducteur type n, Matériau dopé, Couche mince, Pulvérisation irradiation, Croissance film, Pulvérisation cathodique, Magnétron, Nanocristal, Nanoparticule, Procédé sol gel, Facteur transmission, Conductivité électrique, Oxyde de zinc, Aérogel, Nanostructure, Microscopie électronique transmission, Codopage, Addition aluminium, Addition cobalt, Microscopie électronique balayage, O Zn, ZnO:Al Co, 8115C, 6855J, 7361, 7820C.
English descriptors
- KwdEn :
- Aerogels, Aluminium additions, Cathode sputtering, Cobalt additions, Codoping, Doped materials, Electrical conductivity, Film growth, Magnetrons, Nanocrystal, Nanoparticles, Nanostructures, Preparation, Scanning electron microscopy, Sol-gel process, Sputtering, Thin films, Transmission electron microscopy, Transmittance, Zinc oxide, n type semiconductor.
Abstract
Highly transparent, n-type conducting ZnO thin films were obtained by low temperature magnetron sputtering of (Co, Al) co-doped ZnO nanocrystalline aerogels. The nanoparticles of ∼30 nm size were synthesized by a sol-gel method using supercritical drying in ethyl alcohol. The structural, optical and electrical properties of the films were investigated. The ZnO films were polycrystalline textured, preferentially oriented with the (0 0 2) crystallographic direction normal to the film plane. The films show within the visible wavelength region an optical transmittance of more than 90% and a low electrical resistivity of 3.5 x 10-4 Ω cm at room temperature.
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<series><title level="j" type="main">Applied surface science</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aerogels</term>
<term>Aluminium additions</term>
<term>Cathode sputtering</term>
<term>Cobalt additions</term>
<term>Codoping</term>
<term>Doped materials</term>
<term>Electrical conductivity</term>
<term>Film growth</term>
<term>Magnetrons</term>
<term>Nanocrystal</term>
<term>Nanoparticles</term>
<term>Nanostructures</term>
<term>Preparation</term>
<term>Scanning electron microscopy</term>
<term>Sol-gel process</term>
<term>Sputtering</term>
<term>Thin films</term>
<term>Transmission electron microscopy</term>
<term>Transmittance</term>
<term>Zinc oxide</term>
<term>n type semiconductor</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Préparation</term>
<term>Semiconducteur type n</term>
<term>Matériau dopé</term>
<term>Couche mince</term>
<term>Pulvérisation irradiation</term>
<term>Croissance film</term>
<term>Pulvérisation cathodique</term>
<term>Magnétron</term>
<term>Nanocristal</term>
<term>Nanoparticule</term>
<term>Procédé sol gel</term>
<term>Facteur transmission</term>
<term>Conductivité électrique</term>
<term>Oxyde de zinc</term>
<term>Aérogel</term>
<term>Nanostructure</term>
<term>Microscopie électronique transmission</term>
<term>Codopage</term>
<term>Addition aluminium</term>
<term>Addition cobalt</term>
<term>Microscopie électronique balayage</term>
<term>O Zn</term>
<term>ZnO:Al Co</term>
<term>8115C</term>
<term>6855J</term>
<term>7361</term>
<term>7820C</term>
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<front><div type="abstract" xml:lang="en">Highly transparent, n-type conducting ZnO thin films were obtained by low temperature magnetron sputtering of (Co, Al) co-doped ZnO nanocrystalline aerogels. The nanoparticles of ∼30 nm size were synthesized by a sol-gel method using supercritical drying in ethyl alcohol. The structural, optical and electrical properties of the films were investigated. The ZnO films were polycrystalline textured, preferentially oriented with the (0 0 2) crystallographic direction normal to the film plane. The films show within the visible wavelength region an optical transmittance of more than 90% and a low electrical resistivity of 3.5 x 10<sup>-4</sup>
Ω cm at room temperature.</div>
</front>
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