Pulsed laser deposition of novel materials for thin film solid oxide fuel cell applications: Ce0.9Gd0.1O1.95, La0.7Sr0.3CoOy and La0.7Sr0.3Co0.2Fe0.8Oy

被引：43

作者：

Coccia, LG ^{[1
]}

Tyrrell, GC ^{[1
]}

Kilner, JA ^{[1
]}

Waller, D ^{[1
]}

Chater, RJ ^{[1
]}

Boyd, IW ^{[1
]}

机构：

[1] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED, DEPT MAT, LONDON SW7 2BT, ENGLAND

来源：

APPLIED SURFACE SCIENCE | 1996年 / 96-8卷

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/0169-4332(96)00000-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The growth, by pulsed laser deposition (PLD), and characterisation of thin films of Ce0.9Gd0.1O1.95 (CGO), La0.7Sr0.3CoOy and La0.7Sr0.3Co0.2Fe0.8Oy, 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 species suggests that the background gas pressure required, during deposition, to maintain stoichiometry is required to enhance the sticking coefficient of Cef on the surface. The effects of deposition parameters on the angular distribution of material has also been investigated using a quartz crystal microbalance.

引用

页码：795 / 801

页数：7

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