Resumen
The optical properties of titania (TiO2) thin films prepared by the sol-gel process and doped with rhodamine 6G were studied by Photoacoustic Spectroscopy. Rhodamine 6G-doping was achieved by adding 0.01%, 0.02%, 0.05% y 0.1% mol rhodamine to a solution that contained titanium isopropoxide as precursor. Two absorption regions were distinguished in the absorption spectrum of a typical rhodamine 6G-doped TiO2 film. A shift of these bands occured as a function of rhodamine 6G-doping concentration. In addition, the optical absorption and band gap energy for rutile-phase TiO2 films were calculated, employing the full-potential linearized augmented plane wave method. A comparison of these calculations with experimental data of TiO 2 films prepared by sol-gel at room temperature was performed.
Idioma original | Inglés |
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Páginas (desde-hasta) | 415-417 |
Número de páginas | 3 |
Publicación | Journal De Physique. IV : JP |
Volumen | 125 |
DOI | |
Estado | Publicada - 2005 |
Publicado de forma externa | Sí |
Evento | 13th ICPPP International Conference on Photoacoustic and PhotothermalPhenomena - Rio de Janeiro, Brasil Duración: 5 jul. 2004 → 8 jul. 2004 |