In recent years, an increased interest of nanocrystalline oxide materials
was been observed [1, 2]. Such oxides join a few selected,
well-defined properties such as high transparency, good electrical
conductivity, hydrophilic or hydrophobic properties, antireflective
properties, etc. [3, 4]. In contrary to conventional semiconductors,
such thin oxide films, prepared for transparent electronics
or solar cells application, combine mainly two specific features
[5]: high transparency in visible light and the ability of electrical
conduction at room temperature. These oxides, depending on the
level of electrical resistivity are divided into two groups of materials:
Transparent Conducting Oxide (TCO) or Transparent Oxide
Semiconductor. However, in the literature, there is increasing
number of reports about trying to get the additional properties,
but most showed examples of multilayers. For example, it might
be a thin oxide films with additional antireflective properties, prepared
as TiO2 /SiO2 multilayers [4, 6] in order to obtain the largest
possible reduction of light reflectance. Pemble et al. described
dual functionality self-cleaning thermochromic films prepared by
APCVD method. The multilayers based on VO2 and TiO2 revealed
good degradation of stearic acid under UV radiation and thermochromic
properties with the switching temperature of 55oC.
In the first part of this paper, the possibilities of characterization
of nanostructures used in the Laboratory of Optoelectrical
Diagnostics of Nanomaterials located at Wroclaw Univeristy of
Technology have been showed. Then antireflective, photoactive
nanocrystalline Ti-V oxide as a multifunctional thin film has been
presented.
Directions of current research
The scope of current work carried out in the Laboratory involves
the research for new, nanocrystalline oxide materials with unique
electrical and optical properties, which might be applied as multifunctional
coatings for example s
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