Fig. 8From: Optical Constants and Band Gap Evolution with Phase Transition in Sub-20-nm-Thick TiO2 Films Prepared by ALDXRD patterns for films of a 600, b 500, and c 300 cycles before and after annealing. The annealing temperatures are increasing from bottom to top: as deposited (black), 400 °C (red), 500 °C (green), 600 °C (blue), 700 °C (cyan), 800 °C (magenta), and 900 °C (yellow)Back to article page