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通过阴极电弧蒸发获得的钆掺杂二氧化铈涂层的可行性综合与表征

Feasibility Synthesis and Characterization of Gadolinia Doped Ceria Coatings Obtained by Cathodic Arc Evaporation.

作者信息

Briois Pascal, Aubry Eric, Ringuedé Armelle, Cassir Michel, Billard Alain

机构信息

FEMTO-ST, UMR 6174, CNRS, Universite Bourgogne Franche-Comté, UTBM, Site de Montbéliard, F-90010 Belfort, France.

FC Lab Research (FR CNRS 3539), Rue Thierry Mieg, F-90010 Belfort, France.

出版信息

Nanomaterials (Basel). 2021 May 3;11(5):1211. doi: 10.3390/nano11051211.

DOI:10.3390/nano11051211
PMID:34063587
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8147643/
Abstract

Gadolinia doped ceria coatings were elaborated by cathodic arc evaporation from a metallic Ce-Gd (90-10 at.%) target inserted into a conventional multiarc Ti evaporation target in the presence of a reactive argon-oxygen gas mixture. The structural and chemical features of these films were determined by x-ray diffraction and scanning electron microscopy. Their electrical properties were characterized using impedance spectroscopy measurements. It was shown that the as-deposited coatings crystallize in the fluorite type fcc structure of ceria and that their composition is the same as that of the target. The morphology of the coatings is influenced by the evaporation parameter (stress and droplet). The electrical measurements showed two contributions in Nyquist representation and the activation energy was slightly higher than that given in the literature data for the bulk material.

摘要

通过在反应性氩 - 氧气体混合物存在下，从插入传统多弧钛蒸发靶中的金属Ce - Gd（90 - 10原子％）靶进行阴极电弧蒸发，制备了钆掺杂二氧化铈涂层。通过X射线衍射和扫描电子显微镜确定了这些薄膜的结构和化学特征。使用阻抗谱测量对其电学性质进行了表征。结果表明，沉积态涂层以二氧化铈的萤石型面心立方结构结晶，并且其组成与靶材相同。涂层的形貌受蒸发参数（应力和液滴）影响。电学测量在奈奎斯特图中显示出两种贡献，并且活化能略高于文献中给出的块状材料的数据。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/2971ddb3e764/nanomaterials-11-01211-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/5396b98f7483/nanomaterials-11-01211-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/0c88e1016253/nanomaterials-11-01211-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/83cbae4748bc/nanomaterials-11-01211-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/d94afb4244fe/nanomaterials-11-01211-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/08c09b108cc3/nanomaterials-11-01211-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/b86e88634a64/nanomaterials-11-01211-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/c49996214e5a/nanomaterials-11-01211-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/2971ddb3e764/nanomaterials-11-01211-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/5396b98f7483/nanomaterials-11-01211-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/0c88e1016253/nanomaterials-11-01211-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/83cbae4748bc/nanomaterials-11-01211-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/d94afb4244fe/nanomaterials-11-01211-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/08c09b108cc3/nanomaterials-11-01211-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/b86e88634a64/nanomaterials-11-01211-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/c49996214e5a/nanomaterials-11-01211-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5035/8147643/2971ddb3e764/nanomaterials-11-01211-g008.jpg

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本文引用的文献

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