Optical and Electrical Properties of TiO2/Co/TiO2 Multilayer Films Grown by DC Magnetron Sputtering
Transparent oxide multilayer films of TiO2/Co/TiO2 were grown on glass substrate by DC magnetron sputtering technique. The optical and electrical properties of these films were analyzed with the aim of substituting ITO substrate in optoelectronic devices. The samples were characterized by UV-visible...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2018/1257543 |
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| author | Marcos G. Valluzzi Lucas G. Valluzzi Marcos Meyer María A. Hernández-Fenollosa Laura C. Damonte |
| author_facet | Marcos G. Valluzzi Lucas G. Valluzzi Marcos Meyer María A. Hernández-Fenollosa Laura C. Damonte |
| author_sort | Marcos G. Valluzzi |
| collection | DOAJ |
| description | Transparent oxide multilayer films of TiO2/Co/TiO2 were grown on glass substrate by DC magnetron sputtering technique. The optical and electrical properties of these films were analyzed with the aim of substituting ITO substrate in optoelectronic devices. The samples were characterized by UV-visible spectroscopy, atomic force microscopy (AFM), and Kelvin probe force microscopy (KPFM). The effect of Co interlayer thickness (4, 8, and 12 nm) on the transmittance spectra yielded an optical absorption edge shift. The work function of these films was determined by KPFM technique allowing us to predict the Fermi level shift by extending the model for pure materials to our multilayer system. The Fermi level and optical absorption edge seem to be correlated and shifted toward lower energies when Co interlayer thickness is increased. |
| format | Article |
| id | doaj-art-f9dc169ae0584f4fb0428c18e8de93e7 |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-f9dc169ae0584f4fb0428c18e8de93e72025-02-03T05:43:35ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242018-01-01201810.1155/2018/12575431257543Optical and Electrical Properties of TiO2/Co/TiO2 Multilayer Films Grown by DC Magnetron SputteringMarcos G. Valluzzi0Lucas G. Valluzzi1Marcos Meyer2María A. Hernández-Fenollosa3Laura C. Damonte4IDEI, Universidad Nacional de Tierra del Fuego (UNTDF), Ushuaia 9410, ArgentinaIDEI, Universidad Nacional de Tierra del Fuego (UNTDF), Ushuaia 9410, ArgentinaDto. de Física, Facultad de Ciencias Exactas, UNLP-IFLP, CCT, CONICET, La Plata 1900, ArgentinaInstituto de Tecnología de Materiales, Universitat Politècnica de València, Camino de Vera s/n, Valencia 46022, SpainDto. de Física, Facultad de Ciencias Exactas, UNLP-IFLP, CCT, CONICET, La Plata 1900, ArgentinaTransparent oxide multilayer films of TiO2/Co/TiO2 were grown on glass substrate by DC magnetron sputtering technique. The optical and electrical properties of these films were analyzed with the aim of substituting ITO substrate in optoelectronic devices. The samples were characterized by UV-visible spectroscopy, atomic force microscopy (AFM), and Kelvin probe force microscopy (KPFM). The effect of Co interlayer thickness (4, 8, and 12 nm) on the transmittance spectra yielded an optical absorption edge shift. The work function of these films was determined by KPFM technique allowing us to predict the Fermi level shift by extending the model for pure materials to our multilayer system. The Fermi level and optical absorption edge seem to be correlated and shifted toward lower energies when Co interlayer thickness is increased.http://dx.doi.org/10.1155/2018/1257543 |
| spellingShingle | Marcos G. Valluzzi Lucas G. Valluzzi Marcos Meyer María A. Hernández-Fenollosa Laura C. Damonte Optical and Electrical Properties of TiO2/Co/TiO2 Multilayer Films Grown by DC Magnetron Sputtering Advances in Condensed Matter Physics |
| title | Optical and Electrical Properties of TiO2/Co/TiO2 Multilayer Films Grown by DC Magnetron Sputtering |
| title_full | Optical and Electrical Properties of TiO2/Co/TiO2 Multilayer Films Grown by DC Magnetron Sputtering |
| title_fullStr | Optical and Electrical Properties of TiO2/Co/TiO2 Multilayer Films Grown by DC Magnetron Sputtering |
| title_full_unstemmed | Optical and Electrical Properties of TiO2/Co/TiO2 Multilayer Films Grown by DC Magnetron Sputtering |
| title_short | Optical and Electrical Properties of TiO2/Co/TiO2 Multilayer Films Grown by DC Magnetron Sputtering |
| title_sort | optical and electrical properties of tio2 co tio2 multilayer films grown by dc magnetron sputtering |
| url | http://dx.doi.org/10.1155/2018/1257543 |
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