The aim of this study was to analyze the gap energy and crystal structure of Barium Zirconium Titanate (BZT) thin film with three composition variation namely BaZr0,85Ti0,15O3, BaZr0,9Ti0,1O3 dan BaZr0,95Ti0,05O3. The Thin film were deposited by sol-gel method which prepared by spin coater of 3000 rpm rotary speed for 30 seconds. The thin film ware grown using two annealing temperatures of 600�…