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Título : Structural and optical characterization of ZnO layers grown by chemical bath deposition activated by means microwaves
Autor : Diaz Reyes, Joel
Palabras clave : - ZnO, CBD- tW, Raman scattering, X-Ray diffraction, photoluminescence, Energy dispersive spectroscopy
Fecha de publicación : 27-nov-2012
Resumen : ZnO has received increasing attention and been recognized as a promising candidate for applications due to its optoelectronic properties in the UV range. The ZnO is grown by the technique of Chemical Bath Deposition activated by microwaves (CBD- tW). X-rays sca ttering yields a hexagonal polycrystalline wm1zite type structure. The Raman spectra present fom main peaks at 444, 338, 104 and 78 cm•1 associated to the modes E/ ;x", (E/"K"- £/"" ), £/""' and an unidentified band. The 300 K photoluminescence presents visible/UV radiative bands associated to vacancies of zinc and oxygen . In addition, it was carried out energy dispersive spectroscopy (EDS) measmements on the films to determine their stoichiometry, relating the intensity of radiative bands associated to oxygen and zinc vacancies.
Descripción : article
URI : http://www.repositoriodigital.ipn.mx/handle/123456789/8598
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