Optical properties of rhodamine 6G-doped TiO2 sol-gel films
2005 (English)In: Journal de Physique IV: Colloque, ISSN 1155-4339, Vol. 125, 415-417 p.Article in journal (Refereed) Published
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 TiO2 films prepared by sol-gel at room temperature was performed.
Place, publisher, year, edition, pages
2005. Vol. 125, 415-417 p.
IdentifiersURN: urn:nbn:se:kth:diva-14852DOI: 10.1051/jp4:2005125097ISI: 000230014700098ScopusID: 2-s2.0-33645072261OAI: oai:DiVA.org:kth-14852DiVA: diva2:332893
QC 20100525 QC 201110112010-08-052010-08-052011-10-11Bibliographically approved