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首页> 外文期刊>Crystal growth & design >Tailoring Ferroelectric Properties of 0.37BiScO(3)-0.63PbTiO(3) Thin Films Using a Multifunctional LaNiO3 Interlayer
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Tailoring Ferroelectric Properties of 0.37BiScO(3)-0.63PbTiO(3) Thin Films Using a Multifunctional LaNiO3 Interlayer

机译:使用多功能LANIO3中间层剪裁0.37bisco(3)-0.63pbtio(3)薄膜的铁电特性

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摘要

Functional oxide thin films integrated into complementary metal oxide semiconductor technology often exhibit degraded properties with respect to bulk materials because of complex interfacial phenomena. In this contribution, we demonstrate that a sol-gel LaNiO3 (LNO) interlayer deposited onto the surface of a Pt/TiO2/SiO2/Si substrate prior to growth of sol-gel BiScO3-PbTiO3 (BSPT) films acts: (i) to seed nucleation of perovskite structured; (ii) to template growth to give controlled orientation and enhanced crystallinity; and (iii) as a sink for oxygen vacancies (V-O). The LNO interlayer therefore not only improves the ferroelectric, piezoelectric, and dielectric properties but also reduces leakage current and prevents degradation of the remanent polarization during fatigue tests. We propose that the use of a LNO interfacial layer may offer a generic solution to interfacial degradation in functional oxide films.
机译:集成到互补金属氧化物半导体技术中的功能氧化物薄膜通常由于复杂的界面现象而相对于散装材料表现出降低的性质。 在这种贡献中,我们证明在溶胶 - 凝胶Bisco3-PBTIO3(BSPT)膜的生长之前沉积在Pt / TiO 2 / Si 2 / Si底物表面上的溶胶 - 凝胶LaniO 3(LNO)中间层的作用:(i)至 种子成核的钙钛矿结构; (ii)模板增长,给予受控取向和增强结晶度; (iii)作为氧空位的水槽(V-O)。 因此,LNO中间层不仅改善了铁电,压电和介电性能,还可以减少漏电流并防止疲劳试验期间的再现极化的降解。 我们提出使用LNO界面层可以为函数氧化膜中的界面降解提供通用溶液。

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  • 来源
    《Crystal growth & design》 |2018年第7期|共8页
  • 作者单位

    Univ Coimbra Dept Phys CEMDRX Rua Larga P-3004516 Coimbra Portugal;

    Univ Aveiro Dept Mat &

    Ceram Engn Ctr Res Ceram &

    Composite Mat CICECO P-3810193 Aveiro Portugal;

    Univ Sheffield Dept Mat Sci &

    Engn Sir Robert Hadfield Bldg Mappin St Sheffield S1 3JD S Yorkshire England;

    Univ Aveiro Dept Mat &

    Ceram Engn Ctr Res Ceram &

    Composite Mat CICECO P-3810193 Aveiro Portugal;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 晶体学;
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