[1]李　坤,陈王丽华,蔡忠龙,等.钛酸锶钡溶胶制备研究[J].常州大学学报(自然科学版),2000,(01):1-4.
　LI Kun,H .L .W .Chan,C .L .Choy,et al.Preparation and Proper ties of (Sr0.2Ba0.8)TiO3 Solution[J].Journal of Changzhou University(Natural Science Edition),2000,(01):1-4.
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钛酸锶钡溶胶制备研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2000年01期
页码:
1-4
栏目:
出版日期:
2000-03-25

文章信息/Info

Title:
　Preparation and Proper ties of (Sr0.2Ba0.8)TiO3 Solution
作者:
李　坤1 ;  陈王丽华2 ;  蔡忠龙2 ;  李金华1
1.江苏石油化工学院功能材料实验室, 江苏 常州 213016;2 .香港理工大学应用物理系智能材料研究中心,香港九龙
Author(s):
　LI Kun1 ;  H .L .W .Chan2 ;  C .L .Choy2 ;  LI Jin -hua1
1 .Functional Materials Laboratory , Jiangsu Inst itute of Pet rochemical Technology , Changzhou 213016 , China ;2 .Smart Materials Research Centre , Hong Kong Polytechnic University , Kow loon , Hong Kong
关键词:
溶胶-凝胶法; 薄膜; 钛酸锶钡
Keywords:
Sol -Gel ; film ; (Sr0.2Ba0.8)TiO3
分类号:
O 631.2 ;T N 213
文献标志码:
A
摘要:
用锶、钡的有机酸盐和钛酸丁酯为原料, 以溶胶-凝胶法制备了钛酸锶钡溶胶。考察了有机酸分子量、溶胶的水解方法 对溶胶亲润性、湿敏性、二氧化碳敏感性、成膜均匀性、热解性等的影响。实验得出:先将钛酸丁酯的乙酸乙酯溶液部分水 解, 然后与锶、钡的正辛酸盐、2 -乙基己酸盐或壬酸盐的乙酸乙酯溶液充分混合, 所得的溶胶具有较好的综合性能。
Abstract:
Using organic salts of strontium and barium with titanium butoxide as precursors , the solution of Sr -modified BaTiO3 w ere prepared successfully .The ef fect of organic acid and the preparing procedures on the properties (such as stickiness , moist -sensitivity , CO2 -sensitivity)of solutions w as detected .The results show that the qualified solut ions could be prepared by hy drolyzing titanium butoxide in ethyl acetate partially and then mixing the former w ith the Ba and Sr organic salts (C xH2xCOO - , x =7 -8)in the same solvent sufficient ly . Using the solutions , Pt/BST/Al capacitor and Si/BST/Al capacitor were prepared .The dielectric constant of BST is about 280 on Pt and 96 on Si .The leakage current of capacito rs is low er than 10 -8A/cm2 fo r 0.56 μm BST film .

参考文献/References:

〔1〕Hazeri A , Kahn M .S trontium -Barium -Tit anat e Thin Films by Sol-Gel Processing 〔J〕.Journal of Mat erials Science Let ters , 1995 , 14 :1 085 -1 088 .
〔2〕Takashi H , Takashi T .Preparation and Dielect ric Properties of SrTiO3/ BaTiO3 Mult ilayer Thin Films by Sol -Gel Method 〔J〕. Jpn J Appl Phs , 1995 , 34 :5 100 -5 104 .
〔3〕齐兵, 何夕云, 丁爱丽, 等.水基溶胶-凝胶法制备Ba0.5 Sr0.5TiO3 薄膜及其介电性能研究〔J〕.无机材料学报, 1998 , 13 (3):389 -395 .
〔4〕Livage J , S anchez C , Henry M , et al.The Chemist ry of the Sol -Gel Process 〔J〕.Solid St ate Ionics , 1989 , 32 -33 :633 - 638 .
〔5〕Doeuf f S , Henry M , Sanchez C , et al.Hydrolysis of Titanium Alkoxide:Modif icat ion of the Molecular Precursor by Acetic Acid 〔J〕.J Non -crystal Solids , 1987 , 89 :206 -216 .

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备注/Memo

备注/Memo:
作者简介:李坤(1962 -), 男, 陕西兴平人, 现在香港理工大学攻读博士。
更新日期/Last Update: 2000-03-25