@article {Kontos2011350, title = {Visible light induced wetting of nanostructured N-F co-doped titania films}, journal = {Photochemical and Photobiological Sciences}, volume = {10}, number = {3}, year = {2011}, note = {cited By 28}, pages = {350-354}, abstract = {Nitrogen and fluorine co-doped TiO2 films have been prepared by dip coating of a modified titania sol-gel based on a nitrogen precursor and a nonionic fluorosurfactant as pore template and fluorine source. The modified NF-TiO2 films absorb in the visible spectral range, between 400-510 nm and undergo reversible hydrophilic conversion under visible light to a final contact angle of 8{\textdegree}, in contrast to the UV limited optical response of their undoped anatase TiO2 analogues. The phenomenon takes place at a rate slower than the corresponding one observed for the UV stimulated superhydrophilic effect. The wetting response of the N-F doped TiO2 films correlates well with the variation of their optical properties and surface morphological characteristics and most importantly with their photocatalytic activity, rendering these materials very promising for self-cleaning applications under visible light. {\textcopyright} 2011 The Royal Society of Chemistry and Owner Societies.}, doi = {10.1039/c0pp00159g}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-80455131494\&doi=10.1039\%2fc0pp00159g\&partnerID=40\&md5=0819024ebd64c4de0189547212162fcc}, author = {A. G. Kontos and Pelaez, M. and V. Likodimos and Vaenas, N. and Dionysiou, D.D. and P. Falaras} }