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arXiv · 1512.01004

A theoretical investigation on the transport properties of armchair biphenylene nanoribbons

Hongyu Ge·Guo Wang·Yi Liao
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Abstract

Armchair biphenylene nanoribbons are investigated by using density functional theory. The nanoribbon that contains one biphenylene subunit in a unit cell is a semiconductor with a direct band gap larger than 1 eV, while that containing four biphenylene subunits is a metal. The semiconducting nanoribbon has high electron mobility of 57174 cm2V-1s-1, superior to armchair graphene nanoribbons. Negative differential resistance behavior is observed in two electronic devices composed of the semiconducting and metallic nanoribbons. The on/off ratios are in the order of 10^3. All these indicate that armchair biphenylene nanoribbons are potential candidates for ultra-small logic devices.

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Hongyu Ge, Guo Wang, Yi Liao. 2015-12-03. A theoretical investigation on the transport properties of armchair biphenylene nanoribbons. https://doi.org/10.1016/j.cplett.2016.02.011

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