Get access

Filling of TiO2 Nanotubes by Self-Doping and Electrodeposition


  • The authors would like to acknowledge Martin Kolacyak and Hans Rollig for valuable technical help. Martin Lemberger, Michael Jank and Tobias Erlbacher are acknowledged for conductivity measurements, Dr. Saule Aldabergerova for HRTEM. Supporting Information is available online from Wiley InterScience or from the authors.


A highly efficient approach for metal filling of TiO2nanotube layers is demonstrated. Electrochemical self-doping is used to switch selectively the bottom of TiO2 nanotubes into a conductive state. Subsequent metal electrodeposition therefore starts at the tube bottom and continues in a homogenous and controllable manner up the tubes. The approach essentially allows to deposit all material classes into TiO2 nanotubes and therefore provides the basis for a large variety of functional TiO2 nanotubes – composite materials.

original image
Get access to the full text of this article