Faculty Publications

Title

Out-of-plane electron transport in finite layer MoS2

Document Type

Article

Journal/Book/Conference Title

Journal of Applied Physics

Volume

123

Issue

17

Abstract

Ballistic electron emission microscopy (BEEM) has been used to study the processes affecting electron transport along the [0001] direction of finite layer MoS2 flakes deposited onto the surface of Au/Si(001) Schottky diodes. Prominent features present in the differential spectra from the MoS2 flakes are consistent with the density of states of finite layer MoS2 calculated using density functional theory. The ability to observe the electronic structure of the MoS2 appears to be due to the relatively smooth density of states of Si in this energy range and a substantial amount of elastic or quasi-elastic scattering along the MoS2/Au/Si(001) path. Demonstration of these measurements using BEEM suggests that this technique could potentially be used to study electron transport through van der Waals heterostructures, with applications in a number of electronic devices.

Original Publication Date

5-7-2018

DOI of published version

10.1063/1.5026397

Repository

UNI ScholarWorks, Rod Library, University of Northern Iowa

Language

en

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