Photoelectrochemical effect in dye sensitized, sputter deposited Ti oxide films: The role of thickness-dependent roughness and porosity

Reactively Sputter-Deposited Titanium Oxide Coatings with Parallel Penniform Microstructure

“…[4,8,38] Thus X-ray diffractometry indicated rutile as well as anatase features, depending on the O 2 /Ar gas flow ratio; the present films had a general preponderance of the rutile phase. Analyses of the widths of the X-ray diffraction peaks indicated a grain size of, roughly, 20 nm.…”

“…Applications to photoelectricity and photoelectrocatalysis have given very interesting results. [4,8,38] For example, a 10 mm thick titanium oxide film, prepared as reported in the present paper and dye sensitized by immersion in a solution of cis-dithiocyanatobis(2,2¢-bipyridyl-4,4¢-dicarboxylate)-ruthenium(II) in ethanol, yielded a photoelectric conversion efficiency of about 4 % under exposure to simulated solar irradiation at an intensity of 100 W/m 2 . [39] We note that other efforts have been made recently to produce ªmicrosculpturedº films by glancing angle deposition [40] and to investigate the angular selective optical transmittance through obliquely deposited thin films.…”

“…Our experimental arrangement allowed us to perform optical and electrochemical characterization of the samples as detailed elsewhere. [4,8,38] The substrates were heated to 250 C during the film deposition.…”

Nanomateriales para buenos ambientes interiores: electrocromías, sensores y fotocatalizadores

“…Thus research on dye sensitized solar cells incorporating nanoporous TiO 2 films has been done by Gómez et al [79][80][81][82][83][84]. …”

Fabrication of Grätzel solar cell with TiO2/CdS bilayered photoelectrode

“…Recently, reactive sputtering technique has been used to deposit porous TiO 2 thin films with large surface area for the fabrication of DSCs [23][24][25]. Facing target reactive sputtering (FTS) has some added advantages [26,27], such as, achieving good crystallinity at room temperature and deposition of film, free from damage of O − ions and γ-electrons.…”