arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.06447cond-mat.mtrl-sci
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半导体中负U缺陷的表征

Characterisation of negative-U defects in semiconductors

José Coutinho, Vladimir P. Markevich, Anthony R. Peaker

摘要:

这篇评论的目的是提供一个回顾,以及描述的国家的最先进的和未来的前景,关于半导体负U缺陷的理论和实验表征。这是通过补充说明的工作,导致了一些最详细的,但更复杂的半导体缺陷模型的帐户。给出了负U行为的基本物理机制,包括电子关联、电子-声子耦合、双折射、缺陷跃迁能级和跃迁速率。还介绍了用于分析实验数据和建模的技术,即缺陷统计、载流子捕获和发射动力学、缺陷变换、配置坐标图和其他工具。最后,我们还展示了几项工作,这些工作导致了对IV族和化合物半导体中一些最具影响力的负U缺陷的识别。

英文摘要:

This review aims at providing a retrospective, as well as a description of the state-of-the-art and future prospects regarding the theoretical and experimental characterisation of negative-U defects in semiconductors. This is done by complementing the account with a description of the work that resulted in some of the most detailed, and yet more complex defect models in semiconductors. The essential physics underlying the negative-U behaviour is presented, including electronic correlation, electron-phonon coupling, disproportionation, defect transition levels and rates. Techniques for the analysis of the experimental data and modelling are also introduced, namely defect statistics, kinetics of carrier capture and emission, defect transformation, configuration coordinate diagrams and other tools. We finally include a showcase of several works that led to the identification of some of the most impacting negative-U defects in group-IV and compound semiconductors.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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