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Condensed Matter > Mesoscale and Nanoscale Physics

arXiv:1512.05021 (cond-mat)
[Submitted on 16 Dec 2015]

Title:Few-layer Phosphorene: An Ideal 2D Material For Tunnel Transistors

Authors:Tarek A. Ameen, Hesameddin Ilatikhameneh, Gerhard Klimeck, Rajib Rahman
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Abstract:2D transition metal dichalcogenides (TMDs) have attracted a lot of attention recently for energy-efficient tunneling-field-effect transistor (TFET) applications due to their excellent gate control resulting from their atomically thin dimensions. However, most TMDs have bandgaps (Eg) and effective masses (m*) outside the optimum range needed for high performance. It is shown here that the newly discovered 2D material, few-layer phosphorene, has several properties ideally suited for TFET applications: 1) direct Eg in the optimum range ~1.0-0.4 eV, 2) light transport m* (0.15m0), 3) anisotropic m* which increases the density of states near the band edges, and 4) a high mobility. These properties combine to provide phosphorene TFET outstanding ION 1 mA/um, ON/OFF ratio~1e6, scalability to 6 nm channel length and 0.2 V supply voltage, thereby significantly outperforming the best TMD-TFETs in energy-delay products. Full-band atomistic quantum transport simulations establish phosphorene TFETs as serious candidates for energy-eficient and scalable replacements of MOSFETs.
Subjects: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
Cite as: arXiv:1512.05021 [cond-mat.mes-hall]
  (or arXiv:1512.05021v1 [cond-mat.mes-hall] for this version)
  https://doi.org/10.48550/arXiv.1512.05021
Journal reference: Scientific reports 6 (2016): 28515
Related DOI: https://doi.org/10.1038/srep28515

Submission history

From: Tarek Ameen [view email]
[v1] Wed, 16 Dec 2015 01:11:26 UTC (1,478 KB)
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