热离子阴极体系中Sc2O3本征缺陷的从头算模型

IVESC 2012 Pub Date : 2012-04-24 DOI:10.1109/IVESC.2012.6264181

R. Jacobs, D. Morgan, J. Booske

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引用次数: 1

摘要

利用量子力学模型建立了Sc2O3的缺陷模型，并在阴极工作条件下进行了评估，以确定用于阴极实验的Sc2O3的电子性能。我们发现Sc2O3在低于ppm的杂质浓度下可以很好地导电，使得发射的限制步骤不通过整体Sc2O3传导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Ab initio model of intrinsic defects in Sc2O3 for thermionic cathode systems

A defect model for Sc₂O₃ was developed using quantum mechanical modeling and evaluated under cathode operating conditions to determine the electronic properties of Sc₂O₃ used in cathode experiments. We find that Sc₂O₃ can conduct well enough with a sub-ppm impurity concentration such that the limiting step of emission is not conduction through bulk Sc₂O₃.

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IVESC 2012

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