Fig. 1From: Microscopic and chemical analysis of room temperature UV laser annealing of solution-based zinc-tin-oxide thin filmsa Schematic figure of excimer laser annealing of sol-gel thin films at room temperature. b Optical absorption spectra (α) of the ZTO (ZnSnOx) films with variation of laser annealing duration. The red lines represent the linear extrapolation of (αhν)2 to the x-axis, for estimating the bandgap valuesBack to article page