Authors: Srikanth Jagadeesan Yang Hoi Doh KyungHyun Choi
Publish Date: 2017/03/13
Volume: 14, Issue: 3, Pages: 701-708
Abstract
Titanium dioxide TiO2 thin film was fabricated using titanium isopropoxide as a precursor through an atmospheric lowtemperature rolltoroll chemical vapor deposition method TiO2 was deposited on the PET substrate in the temperature range of room temperature to 100°C and the working pressure was 740 Torr The surface morphology of TiO2 thin film was analyzed by field emission scanning electron microscopy and a 2D surface profiler The results revealed that the growth rate of TiO2 film was 31 nm/min at 100°C and it also showed that the surface is uniform and smooth Moreover the lowest root mean square roughness R q value of 187 nm was obtained for TiO2 film prepared at 100°C The composition of TiO2 film was confirmed by Xray photoelectron spectroscopy XPS analysis The film showed very good chemical and optical properties while increasing the substrate deposition temperature The UV–Vis spectroscopy analysis revealed that TiO2 films exhibited excellent optical transmittance more than 91 observed in the visible region
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