| Titre : |
Caractéristiques optiques et structurales des couches minces de titane obtenues par voie Sol-Gel |
| Type de document : |
texte imprimé |
| Auteurs : |
Dounia Adnane ; Rabah Bensaha, Directeur de thèse |
| Editeur : |
Constantine : Université Mentouri Constantine |
| Année de publication : |
2005 |
| Importance : |
103 f. |
| Note générale : |
01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C. 01 CD |
| Langues : |
Français (fre) |
| Tags : |
Couches minces Sol-gel Oxyde de titane |
| Index. décimale : |
530 Physique |
| Résumé : |
TiO2 thin films were prepared on glass and ITO substrate by sol–gel process. Their structural and optical properties were examined of different steeping at various calcination temperatures. The films were characterized with X-ray Diffractométre, DSC, fluorescence X spectroscopy, UV-VISIBLE spectroscopy, optical microscopy and Fourier transform infrared spectroscopy (FTIR). The XRD
patterns show that the xerogel of TiO2 are amorphous, and they transform into the anatase phase from 350°C, and we notice the appearance of the phase brookite after 400°C. In the case of the sample obtained with 400°C and 10 steepings , we
observe the appearance of the phase rutile , normally this one must appear with
800°C. The crystallite size of TiO2 thin films is increased with increasing
calcination temperature. The color of the thin layers obtained varies according to
the temperature of annealing and of the number of steeping. The thickness varies
between 20–285nm. The thermal analysis of the powder shows that the
crystallization of TiO2 is from 400°C. The thin layers of TiO2 are transparent in the
visible and opaque in UV, and this some are the temperature of annealing and the
number of steeping. The increase in the number of steeping returns the layers
opaque, what minimizes their transmission. |
| Diplôme : |
Magistère |
| En ligne : |
../theses/physique/ADN4465.pdf |
| Permalink : |
https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=3597 |
Caractéristiques optiques et structurales des couches minces de titane obtenues par voie Sol-Gel [texte imprimé] / Dounia Adnane ; Rabah Bensaha, Directeur de thèse . - Constantine : Université Mentouri Constantine, 2005 . - 103 f. 01 Disponible à la salle de recherche 02 Disponibles au magazin de la B.U.C. 01 CD Langues : Français ( fre)
| Tags : |
Couches minces Sol-gel Oxyde de titane |
| Index. décimale : |
530 Physique |
| Résumé : |
TiO2 thin films were prepared on glass and ITO substrate by sol–gel process. Their structural and optical properties were examined of different steeping at various calcination temperatures. The films were characterized with X-ray Diffractométre, DSC, fluorescence X spectroscopy, UV-VISIBLE spectroscopy, optical microscopy and Fourier transform infrared spectroscopy (FTIR). The XRD
patterns show that the xerogel of TiO2 are amorphous, and they transform into the anatase phase from 350°C, and we notice the appearance of the phase brookite after 400°C. In the case of the sample obtained with 400°C and 10 steepings , we
observe the appearance of the phase rutile , normally this one must appear with
800°C. The crystallite size of TiO2 thin films is increased with increasing
calcination temperature. The color of the thin layers obtained varies according to
the temperature of annealing and of the number of steeping. The thickness varies
between 20–285nm. The thermal analysis of the powder shows that the
crystallization of TiO2 is from 400°C. The thin layers of TiO2 are transparent in the
visible and opaque in UV, and this some are the temperature of annealing and the
number of steeping. The increase in the number of steeping returns the layers
opaque, what minimizes their transmission. |
| Diplôme : |
Magistère |
| En ligne : |
../theses/physique/ADN4465.pdf |
| Permalink : |
https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=3597 |
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