The self-organized TiO2 nanotube layers have attracted considerable scientific and technological
interest over the past 10 years motivated for their possible range of applications including photocatalysis,
solar cells, hydrogen generation and biomedical uses. The synthesis of 1D TiO2
nanotube structure is carried out by a conventional electrochemical anodization of valve Ti metal
sheet. One of the major issues to extend the functional range of nanotubes is to coat
homogenously tube interiors by a secondary material.
The presentation will focus in detail on the coating of the nanotube arrays by various materials
using ALD. The deposited materials influence strongly properties of nanotube layers. Experimental
details and some very recent photocatalytic, solar cell, battery and sensing results will be
presented and discussed.

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