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(ZrxTi1-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.
|ジャーナル||Journal of Sol-Gel Science and Technology|
|出版ステータス||Published - 2000 12月|
|イベント||10th International Workshop pn Glass and Ceramics, Hybrids and Nanocomposites from Gels - Yokohama, Jpn|
継続期間: 1999 9月 20 → 1999 9月 24
ASJC Scopus subject areas
- 化学 (全般)