采用溶胶-凝胶旋涂法在Pt(111)/Ti/SiO2/Si(100)基底上成功地沉积出(Bi,Vb)4Ti3O12[Bi3.4Yb0.6Ti3O12,BYT]铁电薄膜。系统地研究了退火温度对BYT铁电薄膜的晶体结构、表面形貌以及铁电性能(剩余极化强度)的影响。揭示了退火温度对BYT薄膜的晶体结构、表面形貌以及铁电性能有着明显的影响,给出了最佳退火温度为700℃左右。
(Bi, Yb)4Ti3O12 (BYT) ferroelectric thin films were deposited on Pt (111) /Ti/SiO2/Si (100) substrates by Sol-Gel method and the effect of annealing temperature on their microstructure and ferroelectric properties were studied. It indicated that the annealing temperature had important effect on crystal structure, surface morphology and ferroelectric properties of BYT films, it reveals the optimal annealing temperature is about 700 ℃.