skip to main content

SciTech ConnectSciTech Connect

Title: Characterization of metal contacts for two-dimensional MoS{sub 2} nanoflakes

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{sub 2} flakes. Metals are chosen based on their work functions relative to the electron affinity of MoS{sub 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.
Authors:
; ; ;  [1] ;  [2] ; ; ; ; ; ;  [3]
  1. Functional Materials and Microsystems Research Group, RMIT University, Melbourne, Victoria 3000 (Australia)
  2. (Australia)
  3. School of Electrical and Computer Engineering, RMIT University, Melbourne, Victoria 3000 (Australia)
Publication Date:
OSTI Identifier:
22253895
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 103; Journal Issue: 23; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; ALUMINIUM; GOLD; MOLYBDENUM SULFIDES; NANOSTRUCTURES; PLATINUM; THIN FILMS; TUNGSTEN; WORK FUNCTIONS