首页> 外文期刊>Journal of power sources >La_(0.8)Sr_(0.2)Ga_(0.8)Mg_(0.2)O_3 - δ thin films for IT-SOFCs: Microstructure and transport properties correlation
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La_(0.8)Sr_(0.2)Ga_(0.8)Mg_(0.2)O_3 - δ thin films for IT-SOFCs: Microstructure and transport properties correlation

机译:用于IT-SOFC的La_(0.8)Sr_(0.2)Ga_(0.8)Mg_(0.2)O_3-δ薄膜:微观结构和传输特性的相关性

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摘要

Highly textured La_(0.8)Sr_(0.2)Ga_(0.8)Mg_(0.2)O_3 (LSGM) films with columnar structure were grown by pulsed laser deposition on (001) NdGaO_3 and SrTiO_3 buffered (001) MgO substrates. Combined analysis of the films structure and morphology and EIS measurements showed that the transport properties are mainly limited by perpendicular grain boundaries effects. Increasing the film thickness, columnar nanosized grains tend to coalesce leading to a decrease of grain boundary concentration, hence to enhanced conductivity.
机译:通过脉冲激光沉积在(001)NdGaO_3和SrTiO_3缓冲(001)MgO衬底上生长具有柱状结构的高织构化La_(0.8)Sr_(0.2)Ga_(0.8)Mg_(0.2)O_3(LSGM)膜。对薄膜结构和形貌以及EIS测量的综合分析表明,传输性能主要受垂直晶界效应的限制。增大膜厚度,柱状纳米尺寸的晶粒趋于聚结,导致晶界浓度降低,因此提高了电导率。

著录项

  • 来源
    《Journal of power sources》 |2013年第15期|10-14|共5页
  • 作者单位

    Department of Chemical Science and Technologies & NAST Center, University of Rome, Tor Vergata, Via delta Ricerca Scientifica 1,00133 Rome, Italy,CNR-SPIN & Dipartimento di Informatica, Sistemi e Produzione, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy;

    Department of Chemical Science and Technologies & NAST Center, University of Rome, Tor Vergata, Via delta Ricerca Scientifica 1,00133 Rome, Italy;

    Department of Chemical Science and Technologies & NAST Center, University of Rome, Tor Vergata, Via delta Ricerca Scientifica 1,00133 Rome, Italy;

    Department of Chemical Science and Technologies & NAST Center, University of Rome, Tor Vergata, Via delta Ricerca Scientifica 1,00133 Rome, Italy;

    CNR-SPIN & Dipartimento di Informatica, Sistemi e Produzione, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy;

    CNR-SPIN & Dipartimento di Informatica, Sistemi e Produzione, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy;

    Department of Chemical Science and Technologies & NAST Center, University of Rome, Tor Vergata, Via delta Ricerca Scientifica 1,00133 Rome, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    LSGM films; PLD; microstructure; electrochemical characterization;

    机译:LSGM电影;PLD;微观结构电化学表征;

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