| Sm掺杂对Ca_(0.4)Sr_(0.6)Bi_4Ti_4O_(15)铁电薄膜性能的影响 |
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| 引用本文： | 车全德,范素华,张丰庆,马建平,于冉,田清波. Sm掺杂对Ca_(0.4)Sr_(0.6)Bi_4Ti_4O_(15)铁电薄膜性能的影响[J]. 稀有金属材料与工程, 2009, 38(Z2) |
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| 作者姓名： | 车全德 范素华 张丰庆 马建平 于冉 田清波 |
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| 作者单位： | 山东建筑大学,山东,济南,250101 |
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| 基金项目： | 国家自然科学基金项目，山东省自然科学基金项目 |
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| 摘 要： | 利用溶胶凝胶工艺在Pt/TiO_2 /SiO_2 /Si衬底上制备了Ca_0.4Sr_0.6Sm_xBi_4-xTi_4O_(15)铁电薄膜.研究了不同钐掺量对薄膜的显微结构、晶粒取向及铁电性能的影响.结果表明:钐掺杂对钙锶铋钛铁电薄膜既有抑制氧空位所导致的畴钉扎作用,也有抑制晶粒生长发育的作用.当钐掺量x=0.05时薄膜样品晶粒发育较良好,沿a轴择优取向,I_((200))/I_((119))=0.869;样品铁电性能优良,剩余极化强度P_r=10.2 μC/cm~2,矫顽场强度E_c=120 kV/cm.
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| 关 键 词： | 铁电薄膜 钐掺杂 取向 |
Effect of Samarium Doping on the Properties of Ca_(0.4)Sr_(0.6)Bi_4Ti_4O_(15) Ferroelectric Film |
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| Che Quande,Fan Suhua,Zhang Fengqing,Ma Jianping,Yu Ran,Tian Qingbo. Effect of Samarium Doping on the Properties of Ca_(0.4)Sr_(0.6)Bi_4Ti_4O_(15) Ferroelectric Film[J]. Rare Metal Materials and Engineering, 2009, 38(Z2) |
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| Authors: | Che Quande Fan Suhua Zhang Fengqing Ma Jianping Yu Ran Tian Qingbo |
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| Affiliation: | Che Qu,e,Fan Suhua,Zhang Fengqing,Ma Jianping,Yu Ran,Tian Qingbo (Sh,ong Jianzhu University,Jinan 250101,China) |
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| Abstract: | Samarium doped calcium strontium bismuth titanium Ca0.4Sr0.6SmxBi4-xTi4O15 ferroelectric films were prepared on Pt/Ti/SiO2/Si substrates by sol-gel method. The effect of Sm content on microstructure,growth orientation,ferroelectric of films were investigated. The result shows that Sm can inhibit the pining effect resulting form oxygen vacancies,hinder the grain growth and reduce the size of grain. The ferroelectric property of Ca0.4Sr0.6Bi4Ti4O15 can be improved by adding proper amount of Sm dopants. The Pr... |
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| Keywords: | ferroelectric film Sm doping orientation |
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