Liquid metal doping induced asymmetry in two-dimensional metal oxides

Mohammad B. Ghasemian; Ali Zavabeti; Francois-Marie Allioux; Pankaj Sharma; Maedehsadat Mousavi; Md Arifur Rahim; Rasoul Khayyam Nekouei; Jianbo Tang; Andrew J. Christofferson; Nastaran Meftahi; Somayeh Rafiezadeh; Soshan Cheong; Pramod Koshy; Richard D. Tilley; Chris F. McConville; Salvy P. Russo; Cuong Ton-That; Jan Seidel; Kourosh Kalantar-Zadeh

doi:10.1002/smll.202309924

Liquid metal doping induced asymmetry in two-dimensional metal oxides

Mohammad B. Ghasemian, Ali Zavabeti, Francois-Marie Allioux, Pankaj Sharma, Maedehsadat Mousavi, Md Arifur Rahim, Rasoul Khayyam Nekouei, Jianbo Tang, Andrew J. Christofferson, Nastaran Meftahi, Somayeh Rafiezadeh, Soshan Cheong, Pramod Koshy, Richard D. Tilley, Chris F. McConville, Salvy P. Russo, Cuong Ton-That, Jan Seidel, Kourosh Kalantar-Zadeh

Research output: Contribution to journal › Article › Research › peer-review

3 Citations (Scopus)

Abstract

The emergence of ferroelectricity in two-dimensional (2D) metal oxides is a topic of significant technological interest; however, many 2D metal oxides lack intrinsic ferroelectric properties. Therefore, introducing asymmetry provides access to a broader range of 2D materials within the ferroelectric family. Here, the generation of asymmetry in 2D SnO by doping the material with Hf_0.5Zr_0.5O₂ (HZO) is demonstrated. A liquid metal process as a doping strategy for the preparation of 2D HZO-doped SnO with robust ferroelectric characteristics is implemented. This technology takes advantage of the selective interface enrichment of molten Sn with HZO crystallites. Molecular dynamics simulations indicate a strong tendency of Hf and Zr atoms to migrate toward the surface of liquid metal and embed themselves within the growing oxide layer in the form of HZO. Thus, the liquid metal-based harvesting/doping technique is a feasible approach devised for producing novel 2D metal oxides with induced ferroelectric properties, represents a significant development for the prospects of random-access memories.

Original language	English
Article number	2309924
Number of pages	12
Journal	Small
Volume	20
Issue number	27
DOIs	https://doi.org/10.1002/smll.202309924
Publication status	Published - 4 Jul 2024
Externally published	Yes

Keywords

atomically thin
doping
HZO
liquid metal
SnO

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10.1002/smll.202309924Licence: CC BY

Cite this

Ghasemian, M. B., Zavabeti, A., Allioux, F.-M., Sharma, P., Mousavi, M., Rahim, M. A., Khayyam Nekouei, R., Tang, J., Christofferson, A. J., Meftahi, N., Rafiezadeh, S., Cheong, S., Koshy, P., Tilley, R. D., McConville, C. F., Russo, S. P., Ton-That, C., Seidel, J., & Kalantar-Zadeh, K. (2024). Liquid metal doping induced asymmetry in two-dimensional metal oxides. Small, 20(27), Article 2309924. https://doi.org/10.1002/smll.202309924

@article{1e04d794246746ff934fa387f3ddf201,

title = "Liquid metal doping induced asymmetry in two-dimensional metal oxides",

abstract = "The emergence of ferroelectricity in two-dimensional (2D) metal oxides is a topic of significant technological interest; however, many 2D metal oxides lack intrinsic ferroelectric properties. Therefore, introducing asymmetry provides access to a broader range of 2D materials within the ferroelectric family. Here, the generation of asymmetry in 2D SnO by doping the material with Hf0.5Zr0.5O2 (HZO) is demonstrated. A liquid metal process as a doping strategy for the preparation of 2D HZO-doped SnO with robust ferroelectric characteristics is implemented. This technology takes advantage of the selective interface enrichment of molten Sn with HZO crystallites. Molecular dynamics simulations indicate a strong tendency of Hf and Zr atoms to migrate toward the surface of liquid metal and embed themselves within the growing oxide layer in the form of HZO. Thus, the liquid metal-based harvesting/doping technique is a feasible approach devised for producing novel 2D metal oxides with induced ferroelectric properties, represents a significant development for the prospects of random-access memories.",

keywords = "atomically thin, doping, HZO, liquid metal, SnO",

author = "Ghasemian, {Mohammad B.} and Ali Zavabeti and Francois-Marie Allioux and Pankaj Sharma and Maedehsadat Mousavi and Rahim, {Md Arifur} and {Khayyam Nekouei}, Rasoul and Jianbo Tang and Christofferson, {Andrew J.} and Nastaran Meftahi and Somayeh Rafiezadeh and Soshan Cheong and Pramod Koshy and Tilley, {Richard D.} and McConville, {Chris F.} and Russo, {Salvy P.} and Cuong Ton-That and Jan Seidel and Kourosh Kalantar-Zadeh",

note = "Funding Information: This work was supported by the Australian Research Council (ARC) Laureate Fellowship grant (FL180100053), the ARC Center of Excellence FLEET (CE170100039), and the ARC Industrial Hub (IH210100025). The authors also acknowledge the facilities and the scientific and technical assistance of Microscopy Australia at the Electron Microscope Unit (EMU) within the Mark Wainwright Analytical Center (MWAC) at UNSW Sydney. This research was undertaken with the assistance of supercomputing resources from the National Computational Infrastructure (NCI), which was supported by the Australian Government, under the National Computational Merit Allocation Scheme, and supported by resources provided by the Pawsey Supercomputing Research Center with funding from the Australian Government and the Government of Western Australia. P.S. acknowledges support from Flinders University's start‐up grant (343.13426 – 22). Publisher Copyright: {\textcopyright} 2024 The Authors. Small published by Wiley-VCH GmbH.",

year = "2024",

month = jul,

day = "4",

doi = "10.1002/smll.202309924",

language = "English",

volume = "20",

journal = "Small",

issn = "1613-6829",

publisher = "Wiley-VCH Verlag GmbH & Co. KGaA",

number = "27",

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Ghasemian, MB, Zavabeti, A, Allioux, F-M, Sharma, P, Mousavi, M, Rahim, MA, Khayyam Nekouei, R, Tang, J, Christofferson, AJ, Meftahi, N, Rafiezadeh, S, Cheong, S, Koshy, P, Tilley, RD, McConville, CF, Russo, SP, Ton-That, C, Seidel, J & Kalantar-Zadeh, K 2024, 'Liquid metal doping induced asymmetry in two-dimensional metal oxides', Small, vol. 20, no. 27, 2309924. https://doi.org/10.1002/smll.202309924

TY - JOUR

T1 - Liquid metal doping induced asymmetry in two-dimensional metal oxides

AU - Ghasemian, Mohammad B.

AU - Zavabeti, Ali

AU - Allioux, Francois-Marie

AU - Sharma, Pankaj

AU - Mousavi, Maedehsadat

AU - Rahim, Md Arifur

AU - Khayyam Nekouei, Rasoul

AU - Tang, Jianbo

AU - Christofferson, Andrew J.

AU - Meftahi, Nastaran

AU - Rafiezadeh, Somayeh

AU - Cheong, Soshan

AU - Koshy, Pramod

AU - Tilley, Richard D.

AU - McConville, Chris F.

AU - Russo, Salvy P.

AU - Ton-That, Cuong

AU - Seidel, Jan

AU - Kalantar-Zadeh, Kourosh

N1 - Funding Information: This work was supported by the Australian Research Council (ARC) Laureate Fellowship grant (FL180100053), the ARC Center of Excellence FLEET (CE170100039), and the ARC Industrial Hub (IH210100025). The authors also acknowledge the facilities and the scientific and technical assistance of Microscopy Australia at the Electron Microscope Unit (EMU) within the Mark Wainwright Analytical Center (MWAC) at UNSW Sydney. This research was undertaken with the assistance of supercomputing resources from the National Computational Infrastructure (NCI), which was supported by the Australian Government, under the National Computational Merit Allocation Scheme, and supported by resources provided by the Pawsey Supercomputing Research Center with funding from the Australian Government and the Government of Western Australia. P.S. acknowledges support from Flinders University's start‐up grant (343.13426 – 22). Publisher Copyright: © 2024 The Authors. Small published by Wiley-VCH GmbH.

PY - 2024/7/4

Y1 - 2024/7/4

N2 - The emergence of ferroelectricity in two-dimensional (2D) metal oxides is a topic of significant technological interest; however, many 2D metal oxides lack intrinsic ferroelectric properties. Therefore, introducing asymmetry provides access to a broader range of 2D materials within the ferroelectric family. Here, the generation of asymmetry in 2D SnO by doping the material with Hf0.5Zr0.5O2 (HZO) is demonstrated. A liquid metal process as a doping strategy for the preparation of 2D HZO-doped SnO with robust ferroelectric characteristics is implemented. This technology takes advantage of the selective interface enrichment of molten Sn with HZO crystallites. Molecular dynamics simulations indicate a strong tendency of Hf and Zr atoms to migrate toward the surface of liquid metal and embed themselves within the growing oxide layer in the form of HZO. Thus, the liquid metal-based harvesting/doping technique is a feasible approach devised for producing novel 2D metal oxides with induced ferroelectric properties, represents a significant development for the prospects of random-access memories.

AB - The emergence of ferroelectricity in two-dimensional (2D) metal oxides is a topic of significant technological interest; however, many 2D metal oxides lack intrinsic ferroelectric properties. Therefore, introducing asymmetry provides access to a broader range of 2D materials within the ferroelectric family. Here, the generation of asymmetry in 2D SnO by doping the material with Hf0.5Zr0.5O2 (HZO) is demonstrated. A liquid metal process as a doping strategy for the preparation of 2D HZO-doped SnO with robust ferroelectric characteristics is implemented. This technology takes advantage of the selective interface enrichment of molten Sn with HZO crystallites. Molecular dynamics simulations indicate a strong tendency of Hf and Zr atoms to migrate toward the surface of liquid metal and embed themselves within the growing oxide layer in the form of HZO. Thus, the liquid metal-based harvesting/doping technique is a feasible approach devised for producing novel 2D metal oxides with induced ferroelectric properties, represents a significant development for the prospects of random-access memories.

KW - atomically thin

KW - doping

KW - HZO

KW - liquid metal

KW - SnO

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U2 - 10.1002/smll.202309924

DO - 10.1002/smll.202309924

M3 - Article

C2 - 38263808

AN - SCOPUS:85182825209

SN - 1613-6829

VL - 20

JO - Small

JF - Small

IS - 27

M1 - 2309924

ER -

Liquid metal doping induced asymmetry in two-dimensional metal oxides

Abstract

Keywords

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ARC Research Hub for Advanced Manufacturing with 2D Materials (AM2D)

ARC Centre of Excellence in Future Low-energy Electronics Technologies

Cite this

Liquid metal doping induced asymmetry in two-dimensional metal oxides

Abstract

Keywords

Access to Document

Other files and links

Projects

ARC Research Hub for Advanced Manufacturing with 2D Materials (AM2D)

ARC Centre of Excellence in Future Low-energy Electronics Technologies

Cite this