화학공학소재연구정보센터
Applied Surface Science, Vol.255, No.21, 8913-8916, 2009
Surface chemical states of barium zirconate titanate thin films prepared by chemical solution deposition
Ba(Zr0.05Ti0.95)O-3 (BZT) thin films grown on Pt/Ti/SiO2/Si(100) substrates were prepared by chemical solution deposition. The structural and surface morphology of BZT thin films has been studied by X-ray diffraction (XRD) and scanning electron microscope (SEM). The results showed that the random oriented BZT thin film grown on Pt/Ti/SiO2/Si(100) substrate with a perovskite phase. The SEM surface image showed that the BZT thin film was crack-free. And the average grain size and thickness of the BZT film are 35 and 400 nm, respectively. Furthermore, the chemical states and chemical composition of the films were determined by X-ray photoelectron spectroscopy (XPS) near the surface. The XPS results show that Ba, Ti, and Zr exist mainly in the forms of BZT perovskite structure. (C) 2009 Elsevier B.V. All rights reserved.