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arXiv 1909.11331cond-mat.mtrl-sci
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氟化石墨烯中氟的分布对电子输运的影响

Effect of fluorine patterns on electronic transport in fluorinated graphene

Ruslan D. Yamaletdinov, Vsevolod L. Katkov, Yaroslav A. Nikiforov, Alexander V. Okotrub, Vladimir A. Osipov

摘要:

在随机反应分子动力学模拟的框架内,我们开发了一种统计方法来生成具有所需氟分布的氟化石墨烯结构。研究了不同功能化程度和体系有序度下氟化石墨烯的电子输运性质。我们发现氟分布的不规则性和电子性质之间有很强的相关性。特别是,所提出的考虑使我们能够再现实验观察到的氟化石墨烯的传输特性中的电子-空穴不对称性和最近在10%氟化物含量下揭示的电导率峰。

英文摘要:

Within the framework of stochastic reactive molecular dynamics simulations we develop a statistical method for generating fluorinated graphene structures with desirable fluorine distribution. Electronic transport properties of fluorinated graphene in a wide range of functionalization degree and system ordering are investigated. We have found a strong correlation between irregularities in fluorine distribution and electronic properties. In particular, proposed consideration allows us to reproduce both the experimentally observed electron-hole asymmetry in transport properties of fluorinated graphene and a recently revealed conductivity peak at 10 % fluoride content.

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