| Autor: |
Asakuma, Naoko, Fukui, Toshimi, Aizawa, Mamoru, Toki, Motoyuki, Imai, Hiroaki, Hirashima, Hiroshi |
| Zdroj: |
Journal of Sol-Gel Science & Technology; Dec2000, Vol. 19 Issue 1-3, p333-336, 4p |
| Abstrakt: |
Structural changes stimulated by ultraviolet (UV) laser irradiations of sol-gel derived inorganic oxide films were investigated. Dried gel films of TiO2, Nb2O5, Ta2O5, SrTiO3 and Pb(Zr xTi1− x)O3 (PZT) were found to be crystallized by the laser irradiation. On the other hand, the photo-induced change in gel films of BaTiO3, LiNbO3 and LiTaO3 was not observed although the laser beams were absorbed in the films. These sol-gel films were thermally crystallized at almost the same temperature around 600–700°C except TiO2. Thus, the UV-laser-induced crystallization is not directly ascribed to a simple thermal effect with the irradiation. Photochemical properties of the cations are assumed to be important for the change in sol-gel films. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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