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首页> 外文会议>Symposium F: Third International Conference on Laser Ablation (Cola'95) of the 1995 E-Mrs Spring Conference May 22-26, 1995 Strasbourg, France >Pulsed laser deposition of novel materials for thin film solid oxide fuel cell applicaitons: Ce_0.9Gd_0.1O_1.95, La_0.7Sr_0.3CoO_y and La_0.7-Sr_0.3Co_0.2Fe_0.8O_y
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Pulsed laser deposition of novel materials for thin film solid oxide fuel cell applicaitons: Ce_0.9Gd_0.1O_1.95, La_0.7Sr_0.3CoO_y and La_0.7-Sr_0.3Co_0.2Fe_0.8O_y

机译：用于薄膜固体氧化物燃料电池应用的新型材料的脉冲激光沉积：Ce_0.9Gd_0.1O_1.95，La_0.7Sr_0.3CoO_y和La_0.7-Sr_0.3Co_0.2Fe_0.8O_y

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The growth, by pulsed laser deposition (PLD), and characterisation of thin films of Ce_0.9Gd_0.1O_1.95(CGO), La_0.7Sr_0.3CoO_y and La_0.7-Sr_0.3Co_0.2Fe_0.8O_y, for solid oxide fuel cell (SOFC) application has been investigated. The structural quality and chemical composition was evaluated using X-ray diffraction and secondary ion mass spectrometry. Energy-dispersive mass spectrometry was also used as a method of characterising the ablated plume and gas phase species. During the ablation of CGO, significant numbers of molecular ions of Ce-O~+ and Gd-O~+ were observed in the plume, even in vacuum. The presence of these speices suggests that the background gas pressure required, during deposition, to maintain sotichiometry is requried to enhance the sticking coefficient of Ce~+ on the surface. The effects of deposition parameters on the angular distribution of material has also been investigated using a quartz crystal microbalance.
机译：固体氧化物燃料的脉冲激光沉积（PLD）生长以及Ce_0.9Gd_0.1O_1.95（CGO），La_0.7Sr_0.3CoO_y和La_0.7-Sr_0.3Co_0.2Fe_0.8O_y薄膜的表征电池（SOFC）应用已得到研究。使用X射线衍射和二次离子质谱法评估结构质量和化学组成。能量分散质谱也用作表征烧蚀的羽状和气相物质的方法。 CGO烧蚀过程中，即使在真空中，在烟羽中也观察到大量的Ce-O〜+和Gd-O〜+分子离子。这些物质的存在表明需要在沉积过程中维持化学计量所需的背景气压来提高表面上Ce〜+的粘附系数。还已经使用石英晶体微量天平研究了沉积参数对材料角分布的影响。

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