Figure 2
From: Preparation of hexagonal nanoporous Al2O3/TiO2/TiN as a novel photodetector with high efficiency
The SEM of Al2O3 template after pore widening for (a) 10 and (b) 30 min at 60 °C. (c) Bottom image (d) cross-section image of the TiO2/TiN hollow tubes after removing PAOT. (e) TiO2/TiN (bottom image).
