by O. Peña-Rodríguez, C. F. Sánchez-Valdés, M. Garriga, M. I. Alonso, X. Obradors and T. Puig
Abstract:
Epitaxial thin films of ceria–zirconia solid solutions were grown on yttria-stabilized zirconia (YSZ) substrates by chemical solution deposition. Characterization by X-ray diffraction, atomic force microscopy and variable angle spectroscopic ellipsometry show that high-quality, epitaxial, high density films, with a thickness in the range of 20–27 nm were obtained. Compositional dependence of the film optical constants (n and k) was determined from ellipsometry measurements. It was found that the optical properties for the mixed-oxide films smoothly vary between the values for the pure oxides and are best described by means of a Tauc–Lorentz (TL) model. Moreover, we found that the parameters of the TL model have a linear dependence on the cerium concentration. The obtained results can serve as a database for the thickness, composition and porosity characterization of CexZr1−xO2 thin films.
Reference:
O. Peña-Rodríguez, C. F. Sánchez-Valdés, M. Garriga, M. I. Alonso, X. Obradors and T. Puig, “Optical properties of ceria–zirconia epitaxial films grown from chemical solutions”, Materials Chemistry and Physics, vol. 138, no. 2, pp. 462–467.
Bibtex Entry:
@article{pena-rodriguez_optical_2013,
title = {Optical properties of ceria–zirconia epitaxial films grown from chemical solutions},
volume = {138},
issn = {0254-0584},
url = {http://www.sciencedirect.com/science/article/pii/S0254058412010279},
doi = {10.1016/j.matchemphys.2012.11.069},
abstract = {Epitaxial thin films of ceria–zirconia solid solutions were grown on yttria-stabilized zirconia (YSZ) substrates by chemical solution deposition. Characterization by X-ray diffraction, atomic force microscopy and variable angle spectroscopic ellipsometry show that high-quality, epitaxial, high density films, with a thickness in the range of 20–27 nm were obtained. Compositional dependence of the film optical constants (n and k) was determined from ellipsometry measurements. It was found that the optical properties for the mixed-oxide films smoothly vary between the values for the pure oxides and are best described by means of a Tauc–Lorentz (TL) model. Moreover, we found that the parameters of the TL model have a linear dependence on the cerium concentration. The obtained results can serve as a database for the thickness, composition and porosity characterization of CexZr1−xO2 thin films.},
number = {2},
urldate = {2017-08-01},
journal = {Materials Chemistry and Physics},
author = {Peña-Rodríguez, O. and Sánchez-Valdés, C. F. and Garriga, M. and Alonso, M. I. and Obradors, X. and Puig, T.},
month = mar,
year = {2013},
keywords = {Thin films, Optical properties, Organometallic compounds, Polarimeters and ellipsometers},
pages = {462--467},
file = {ScienceDirect Full Text PDF:E:\cmam_papers\files\792\Peña-Rodríguez et al. - 2013 - Optical properties of ceria–zirconia epitaxial fil.pdf:application/pdf;ScienceDirect Full Text PDF:E:\Usuarios\Administrator\Zotero\storage\S2GJJNEW\Peña-Rodríguez et al. - 2013 - Optical properties of ceria–zirconia epitaxial fil.pdf:application/pdf;ScienceDirect Snapshot:E:\cmam_papers\files\791\S0254058412010279.html:text/html;ScienceDirect Snapshot:E:\Usuarios\Administrator\Zotero\storage\MWD2VADK\S0254058412010279.html:text/html},
}