Efficient Quantum Simulations of Devices Based on 2D Materials Including Vertical Heterojunctions

A. Sanchez-Soares, T. Kelly, S. K. Su, E. Chen, J. C. Greer, G. Fagas

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

Abstract

We present a modelling framework that enables efficient exploration of the electrical performance of devices based on 2D material vertical heterojunctions. Electronic structure data from density functional theory (DFT) simulations is used to extract parameters for k.p Hamiltonians. Material models are then employed in device simulations based on non-equilibrium Green's functions (NEGF) for a quantum-mechanical description of charge transport. Electron-phonon scattering is included in order to account for dissipative phenomena as well as phonon-assisted interlayer charge transport. We demonstrate our methodology with an application to a Dirac-source field-effect transistor (DS-FET) design based on a monolayer molybdenum disulfide channel (ML-MoS2) with a graphene contact.

Original languageEnglish
Title of host publication2024 International Conference on Simulation of Semiconductor Processes and Devices, SISPAD 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798331516352
DOIs
Publication statusPublished - 2024
Event2024 International Conference on Simulation of Semiconductor Processes and Devices, SISPAD 2024 - San Jose, United States
Duration: 25 Sept 202427 Sept 2024

Publication series

NameInternational Conference on Simulation of Semiconductor Processes and Devices, SISPAD
ISSN (Print)1946-1569
ISSN (Electronic)1946-1577

Conference

Conference2024 International Conference on Simulation of Semiconductor Processes and Devices, SISPAD 2024
Country/TerritoryUnited States
CitySan Jose
Period25/09/2427/09/24

Keywords

  • cold source
  • NEGF
  • phonon scattering

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Modelling and Simulation

Fingerprint

Dive into the research topics of 'Efficient Quantum Simulations of Devices Based on 2D Materials Including Vertical Heterojunctions'. Together they form a unique fingerprint.

Cite this