TY - JOUR
T1 - Characterization of metal contacts for two-dimensional MoS2 nanoflakes
AU - Walia, Sumeet
AU - Balendhran, Sivacarendran
AU - Wang, Yichao
AU - Ab Kadir, Rosmalini
AU - Zoolfakar, Ahmad Sabirin
AU - Atkin, Paul
AU - Ou, Jian Zhen
AU - Sriram, Sharath
AU - Kalantar-Zadeh, Kourosh
AU - Bhaskaran, Madhu
PY - 2013
Y1 - 2013
N2 - 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 MoS2. 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.
AB - 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 MoS2. 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.
UR - https://hdl.handle.net/1959.7/uws:71648
U2 - 10.1063/1.4840317
DO - 10.1063/1.4840317
M3 - Article
SN - 0003-6951
VL - 103
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 23
M1 - 232105
ER -