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.