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Performance Analysis of Schottky Barrier Height Modulation in Strained (10, 0) MoS2 Armchair Nano Ribbon-Metal Junction

Authors :
Partha Sarathi Gupta
Lopamudra Banerjee
Arnab Mukhopadhyay
Amretashis Sengupta
Hafizur Rahaman
Source :
2018 IEEE Electron Devices Kolkata Conference (EDKCON).
Publication Year :
2018
Publisher :
IEEE, 2018.

Abstract

In this work by means of ab-initio calculations and Non equilibrium Green's function (NEGF) simulation we look to investigate the effect of strain in MoS 2 armchair nanoribbon (ANR)-metal junctions. We consider a (10, 0) MoS 2 ANR and various metals as Ti, Cr, Al and Ag for contact material. The effect of strain both in plain and out of plain direction is considered. We calculated the work function variations, band-gaps and carrier effective masses with Density Functional Theory (DFT) calculation and evaluated the Schottky barriers with the Schottky-Mott formula. The currents through these barriers were then evaluated with NEGF calculations. Our results show a wide possibility of output current enhancement with Schottky barrier height modulation with the proper choice of strain and contact material combinations.

Details

Database :
OpenAIRE
Journal :
2018 IEEE Electron Devices Kolkata Conference (EDKCON)
Accession number :
edsair.doi...........fc37015494ad129a8fbbf98fca3c17b2
Full Text :
https://doi.org/10.1109/edkcon.2018.8770438