Applications of Tunable TiO₂ Nanotubes as Nanotemplate and Photovoltaic Device

Abstract

Highly ordered anodic titanium oxide (ATO) TiO2 nanotube film has been synthesized via a typical two-step anodization method. Following a reductive doping approach, metallic materials (copper and nickel) can be efficiently electrodeposited into the nanotubes. This versatile process yields reproducible tubular structures in ATO membranes, because of the conductive nature of crystallized TiO2, yielding promising potential for nanotemplate applications. In this paper, we present a dye-sensitized solar cell constructed by employing such ATO films. It is observed that the reductive doping treatment can also enhance the solar cell’s short current density and fill factor, resulting in an improved energy conversion efficiency.

Prototype of a scalable core–shell Cu2O/TiO2 solar cell

“…And increasing the aspect ratios (i.e. tube length) is expected to yield more tubular structures due to the constrained ionic diffusion [16,29]. X-ray diffraction (XRD) pattern of the obtained sample is shown in Figure 3c Figure 3d).…”

Fabrication of AgInS2 nanoparticles sensitized TiO2 nanotube arrays and their photoelectrochemical properties

“…Successful deposition of AgInS 2 nanoparticles on the TiO 2 NTs walls was confirmed, whereas the photochemical properties of the TiO 2 NTs/AgInS 2 were systematically explored in terms of the AgInS 2 deposition cycles in order to assess their potential applications. TiO 2 NTs were prepared according to a two-step anodization, which was similar to the previous reports [23]. The AgInS 2 nanoparticles sensitized TiO 2 NTs photolectrodes were successively prepared by the SILAR technique.…”

UV light-assisted fabrication of Cu0.91In0.09S microspheres sensitized TiO2 nanotube arrays and their photoelectrochemical properties

“…Preparation of Cu 0.91 In 0.09 S microspheres sensitized TiO 2 nanotubes TiO 2 NTs were prepared according to a two-step anodization as reported previously [16,17]. Cu 0.91 In 0.09 S microspheres sensitized TiO 2 nanotubes were fabricated by using photodeposition technique.…”