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arXiv · 1409.8395

Black Phosphorus p-MOSFETs with High Transconductance and Nearly Ideal Subthreshold Slope

Nazila Haratipour·Matthew C. Robbins·Steven J. Koester
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Abstract

We report record performance for black phosphorus p-MOSFETs. The devices have locally patterned back gates and 20-nm-thick HfO2 gate dielectrics. Devices with effective gate length, Leff = 1.0 um display extrinsic transconductance, gm, of 101 uS/um at a drain-to-source bias voltage, Vds = -3 V. Temperature-dependent analysis also shows that the subthreshold slope, SS, is nearly ideal, with a minimum value of SS = 66 mV/decade at room temperature and Vds = -0.1 V. Furthermore, devices with 7-nm HfO2 dielectrics and Leff = 0.3 um displayed gm as high as 204 uS/um at Vds = -1.5 V.

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Nazila Haratipour, Matthew C. Robbins, Steven J. Koester. 2014-09-30. Black Phosphorus p-MOSFETs with High Transconductance and Nearly Ideal Subthreshold Slope. https://arxiv.org/abs/1409.8395

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