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Characterization of metal contacts for two-dimensional MoS₂ nanoflakes

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Version 2 2024-06-13, 10:53
Version 1 2017-10-12, 21:21
journal contribution
posted on 2024-06-13, 10:53 authored by S Walia, S Balendhran, Y Wang, R Ab Kadir, A Sabirin Zoolfakar, P Atkin, J Zhen Ou, S Sriram, K Kalantar-Zadeh, M Bhaskaran
While layered materials are increasingly investigated for their potential in nanoelectronics, their functionality and efficiency depend on charge injection into the materials via metallic contacts. This work explores the characteristics of different metals (aluminium, tungsten, gold, and platinum) deposited on to nanostructured thin films made of two-dimensional (2D) MoS 2 flakes. Metals are chosen based on their work functions relative to the electron affinity of MoS 2 . It is observed, and analytically verified that lower work functions of the contact metals lead to smaller Schottky barrier heights and consequently higher charge carrier injection through the contacts.

History

Journal

Applied physics letters

Volume

103

Article number

232105

Pagination

1-5

Location

Melville, N.Y.

Open access

  • Yes

ISSN

0003-6951

Language

eng

Publication classification

C Journal article, C1.1 Refereed article in a scholarly journal

Copyright notice

2013, AIP Publishing

Issue

23

Publisher

AIP Publishing

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