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- W3143141047 abstract "Titanium dioxide (TiO2) is one of the most commonly investigated materials and bulk TiO2 is well known to be a very useful, non-toxic, environmentally friendly, corrosion-resistant material. One-dimensional (1D) nanostructures, such as nanowires, nanorods, and nanotubes, provide high electron mobility, a high specific surface area, and good mechanical strength. These features allow many applications to achieve maximum efficiency. There are various methods for synthesizing 1D TiO2 nanostructures, but the most common is a simple electrochemical anodization process. In 1983, Assefpour-Dezfuly et al. first reported on anodic TiO2 nanotube synthesis via anodization of a Ti sheet in dilute fluoride electrolytes. A particular advantage of anodic nanotube arrays is that tubes are grown from a metallic substrate and thus can be used directly as back-contacted oxide electrodes. The self-organizing anodization approach allows for easy control of the morphology of the anodic structures (diameter, length, smoothness of the walls), by controlling the anodization conditions. TiO2 nanotubes can be used in many applications, such as photocatalysis, biomedicine, ion-insertion batteries, and electrochromics. One of the most interesting uses is in dye-sensitized solar cells (DSSC). Furthermore, TiO2 in its crystal forms has a wide bandgap (Eg ≈ 3 eV) with suitable band-edge positions that can be employed in solar cells.The world is growing increasingly aware that reserves of fossil fuels are limited and their use has serious environmental side effects. Because of this realization, research into cleaner alternative energy sources is encouraged. Among these alternative energy sources, DSSCs are potentially attractive candidates for devices that can convert an abundant amount of energy from the sun into electricity with a lower cost of production. In the classic Gratzel-type DSSC, the photoanode consists of a compacted TiO2 nanoparticle coated with a monolayer of a suitable inorganic dye. One intensively investigated research direction is the use of self-organized TiO2 nanotubes in DSSCs, i.e., replacing the conventional TiO2 nanoparticle–based electron conductor in Gratzel-type cells.In the present work, we discuss the synthesis of TiO2 nanotubes under different conditions in organic electrolytes. We examine a large range of parameters that influence the morphologies, growth rate, and electronic and mechanical properties of TiO2 nanotubes. We also investigate the impact of these properties on TiO2 nanotubes based DSSCs." @default.
- W3143141047 created "2021-04-13" @default.
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- W3143141047 date "2015-01-01" @default.
- W3143141047 modified "2023-09-23" @default.
- W3143141047 title "Optimizing Growth and Morphologies of TiO2 Nanotubes to Enhance Performance of Dye-Sensitized Solar Cells" @default.
- W3143141047 hasPublicationYear "2015" @default.
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