摘要
以乙醇钽、醋酸锶和硝酸氧铋为原材料，乙二醇单甲醚为溶剂，可以获得稳定的ＳＢＴ溶胶和凝胶。采用Ｐｔ／Ｔｉ／ＳｉＯ２／Ｓｉ基片，通过溶胶—凝胶法在８００℃经快速热处理制备出钙钛矿相ＳＢＴ薄膜。ＸＲＤ结果分析表明，薄膜的择优取向为（１１５）和（００８），其饱和极化强度和剩余极化强度分别为Ｐｓ＝８．８μＣ／ｃｍ２，Ｐｒ＝５．２μＣ／ｃｍ２。
A stable sol and gel of SBT was prepard. Pentaethoxy tantalum, strontium acetate, and bismuth subnitrate were used as raw materials and methoxyethylene as solvent. The SBT sol was spin- coated onto Pt/Ti/SiO2 /Si substrate. After annealing by rapid thermal treat at 800℃, perovskie SBT thin films was obtained. XRD result indicated that the thin films have high oriented tex- ture at (115) and (008) orientaion. The remnant polarization and the saturated polarization were about 8. 8μC/cm2 and 5. 2μC/ respectively.
出处
《陶瓷学报》
CAS
2001年第4期244-247,共4页
Journal of Ceramics
基金
哈尔滨工业大学校基金资助(项目编号:HIT.2001.67)
