Effect of substrate temperature on the structure and the metal insulator transition in pulsed laser deposed V02\ films on soda lime glass

Abstract

In this paper, we report the effect of soda lime substrate deposition temperature (Ts) on the crystal structure and the metal insulator transition of VO2 thin films. Samples were deposited at substrate deposition temperature ranging from 450 to 600 0C by pulsed-laser deposition and characterized by x-ray diffraction and UV-VIS spectrophotometer. At a substrate temperature of 550°C, the VO2 (100) reflection dominate the spectrum showing a change in crystalline grains orientation. The highest transition temperatures of 74 oC with the lowest hysteresis width of 11 oC were obtained on the same sample grown at a substrate deposition temperature of 500 oC and also corresponding to the largest grains size of a value of 350 nm.