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Revista mexicana de física
versión impresa ISSN 0035-001X
Resumen
BECERRIL, M.; SILVA-LOPEZ, H.; GUILLEN-CERVANTES, A. y ZELAYA-ANGEL, O.. Aluminum-doped ZnO polycrystalline films prepared by co-sputtering of a ZnO-Al target. Rev. mex. fis. [online]. 2014, vol.60, n.1, pp.27-31. ISSN 0035-001X.
Aluminum-doped Zinc oxide polycrystalline thin films (AZO) were grown on 7059 Corning glass substrates at room temperature by co-sputtering from a ZnO-Al target. The target was designed as follows, high purity elemental Aluminum was evaporated onto a ZnO target covering small areas. The structural, optical, and electrical properties were analyzed as a function of Al content. The Al doped ZnO polycrystalline films showed an n-type conductivity. It was found that the electrical resistivity drops and the carrier concentration increases as a consequence of Al incorporation within the ZnO lattice. In both cases the changes are of several orders of magnitude. From the results, we conclude that, using these ZnO-Al targets, n-type Al doped ZnO polycrystalline films with high transmittance and low resistivity can be obtained.
Palabras llave : II-VI compounds; semiconductors; low resistivity; ZnO-Al films.