Nanoscale Devices Based on Two-dimensional and Ferroelectric Materials

Zijing Zhao, Kai Xu, Jialun Liu, Wei Jiang, Hojoon Ryu, Shaloo Rakheja, Tony Low, Wenjuan Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ferroelectrics have a spontaneous electric polarization that can be reversed by the application of an external electric field, while two-dimensional (2D) materials are crystalline solids consisting of one or few layer(s) of atoms. In ferroelectric/2D heterostructures, the ferroelectric materials can provide programmable and non-volatile doping in the 2D materials, while the atomically thin body in 2D materials enables strong electrostatic control over the channel by the polarized ferroelectric metal oxides. A wide range of nanoscale devices have been developed based on ferroelectric/2D hetero structures including high-performance nonvolatile memories, steep slope transistors, programmable junctions, charge and pressure sensors, and photodiodes [1]-[4]. In recent years, van der Waals (vdW) ferroelectrics emerged, which are 2D materials with intrinsic ferroelectric order. These vdW materials can retain ferroelectricity down to 1 unit-cell thickness, have tunable bandgap, and can be grown or transferred on any substrate [5]-[7], thus enabling a new series of optoelectronic and electromechanical devices. In this talk, we will discuss our recent work in developing reconfigurable, multifunction and analog devices based on ferroelectric/2D heterostructures and vdW ferroelectric materials [8]-[14].

Original languageEnglish (US)
Title of host publication2022 Device Research Conference, DRC 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665498838
DOIs
StatePublished - 2022
Externally publishedYes
Event2022 Device Research Conference, DRC 2022 - Columbus, United States
Duration: Jun 26 2022Jun 29 2022

Publication series

NameDevice Research Conference - Conference Digest, DRC
Volume2022-June
ISSN (Print)1548-3770

Conference

Conference2022 Device Research Conference, DRC 2022
Country/TerritoryUnited States
CityColumbus
Period6/26/226/29/22

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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