Formation of Self‐Organized Superlattice Nanotube Arrays – Embedding Heterojunctions into Nanotube Walls

In the present work we introduce the growth of 3D-superlattice nanotubes by a simple anodization technique. Highly defined self-organized, oxide tubes with modulated tube wall composition can be created that allow altering and tuning optical, electrical and chemical properties of such nanometer-size architectures. The image shows a stacked nanotube array with built-in TiO2/ Ta2O5 heterojunctions. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.