BaTiO3 Functional Ceramics Thin Film Prepared by Self-Assembled Monolayers
BaTiO3 thin film was prepared by the self-assembled monolayers technique and liquid phase deposition.The effects ofpH values and the deposition temperature on the formation of BaTiO3 film were studied.The results showed that the Si substrate was in the precursor solution with 0.025mol/L (AHFT/BN/BA=1∶1∶3) and pH=1.5.At 45℃ deposited for 8h and annealed at 600℃ for 2h,the BaTiO3 film with higher crystalline was prepared on the functionalized Si substrate.XRD and SEM tests showed that the film deposited in the precursor solution with different pH values appeared BaTiO3 characteristic peaks on the surface of every crystal.As pH values increased to 1.5 from 0.5,the strength of the film diffraction peak increased.But the width of the peak became smaller and the crystalline increased.When pH value was 2,due to the self-polymerized deposition of Ti(OH)62-,it was easy to form the larger particles on the substrate.When the deposition temperature was 45℃,the acicular BaTiO3 film formed with the regular order and homogeneous planeness on the substrate.When the deposition temperature was between 55℃ and 60℃,the dewatering and polymerizing speed between Ti(OH)62-ions was higher than that between Ti(OH)62-and-OH.The adsorption of the film to the Si substrate was weakened.It was easy for the film to fall off.
Liquid phase deposition Self-assembled monolayers BaTiO3thin film
Tan Guoqiang Cheng Zhang Miao Hongyan Ren Huijun Xia Ao
Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education,Shaanxi University of Science and Technology, Xian 710021, China
国际会议
The Sixth China International Conference on High-Performance Ceramics(第六届中国先进陶瓷国际研讨会(CICC-6))
哈尔滨
英文
266-269
2009-08-16（万方平台首次上网日期，不代表论文的发表时间）