Contact Analysis of Elemental Transition Metal Electrodes for Complementary 2D-FET Applications Using MoS2 and WSe2

Prashant, Kumar and Nayak, Kaushik (2022) Contact Analysis of Elemental Transition Metal Electrodes for Complementary 2D-FET Applications Using MoS2 and WSe2. IEEE Electron Device Letters, 43 (7). pp. 1137-1140. ISSN 0741-3106

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Abstract

First principle calculations for efficient transition metal contacts with monolayer MoS2-WSe2 are carried out for complementary device application. The four parameters analysed are exchange energy, density of states, entropy measurements, and effective potential periodicity at interface. Each characterises the electrical contact, as exchange energy establishes stable interface with minimum energy (contacts with strong bonding); density of states determines the charge polarity selection (electron or hole transport) and carrier flow rate through interfaces; entropy measurement reveal contacts with minimum phonon scattering rate (enhanced mobility); and effective potential continuity provides an alternative view of contact resistance from quantum mechanical perspective. Combining these results reveal that in specific crystallographic orientation among the 3d group: V, Cr, Co, and Ni; from 4d group: Tc, Ru, Pd, Ag and from 5d group: Ir, Pt, Au form suitable elemental electrodes for MoS2-WSe2 complementary FET applications.

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IITH Creators:
IITH CreatorsORCiD
Nayak, Kaushikhttps://orcid.org/0000-0001-6583-264X
Item Type: Article
Uncontrolled Keywords: APPROXIMATION,TRANSISTORS,ENERGY
Subjects: Electrical Engineering
Divisions: Department of Electrical Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 22 Aug 2022 11:04
Last Modified: 22 Aug 2022 11:04
URI: http://raiith.iith.ac.in/id/eprint/10252
Publisher URL: http://doi.org/10.1109/LED.2022.3180083
OA policy: https://v2.sherpa.ac.uk/id/publication/3443
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