dc.contributor.author |
Paraguay, F |
|
dc.contributor.author |
Estrada, W |
|
dc.contributor.author |
Acosta, DR |
|
dc.contributor.author |
Andrade, E |
|
dc.contributor.author |
Miki-Yoshida, M |
|
dc.date.accessioned |
2011-01-22T10:27:42Z |
|
dc.date.available |
2011-01-22T10:27:42Z |
|
dc.date.issued |
1999 |
|
dc.identifier.issn |
0040-6090 |
|
dc.identifier.uri |
http://hdl.handle.net/11154/2625 |
|
dc.description.abstract |
Zinc oxide thin films were prepared by spray pyrolytic decomposition of zinc acetate onto a glass substrate. Auger spectroscopy showed that the film stoichiometry is close to the ZnO phase with a little excess of oxygen. X-ray diffraction spectra show that the structure belongs to the hexagonal wurtzite crystal type, with a mean crystallite size in the range 20-33 nm. Under optimized deposition conditions films are c-axis oriented, having a full width at half-maximum (FWHM) value of the (002) X-ray diffraction line of 0.23 degrees. Microstructure was analysed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and high resolution electron microscopy (HREM). In regard to the crystal growth, a critical temperature was found to he around 600 K. Above this critical temperature the film is c-axis oriented and almost all grains became round shaped. Optical constants, n and k, were determined using only transmittance data and a direct band gap of 3.28 eV was deduced. (C) 1999 Elsevier Science S.A. All rights reserved. |
en_US |
dc.language.iso |
en |
en_US |
dc.title |
Growth, structure and optical characterization of high quality ZnO thin films obtained by spray pyrolysis |
en_US |
dc.type |
Article |
en_US |
dc.identifier.idprometeo |
2648 |
|
dc.source.novolpages |
350(40575):192-202 |
|
dc.subject.wos |
Materials Science, Multidisciplinary |
|
dc.subject.wos |
Materials Science, Coatings & Films |
|
dc.subject.wos |
Physics, Applied |
|
dc.subject.wos |
Physics, Condensed Matter |
|
dc.description.index |
WoS: SCI, SSCI o AHCI |
|
dc.subject.keywords |
zinc oxide |
|
dc.subject.keywords |
spray pyrolysis |
|
dc.subject.keywords |
transmission electon microscopy |
|
dc.subject.keywords |
scanning electron microscopy |
|
dc.relation.journal |
Thin Solid Films |
|