Millisecond Conversion of Metastable 2D Materials by Flash Joule Heating

Weiyin Chen; Zhe Wang; Ksenia Bets; Duy Xuan Luong; Muqing Ren; Michael G. Stanford; Emily A. McHugh; Wala A. Algozeeb; Hua Guo; Guanhui Gao; Bing Deng; Jinhang Chen; John Tianci Li; William T. Carsten; Boris Yakobson; James M. Tour

doi:10.1021/acsnano.0c08460

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Millisecond Conversion of Metastable 2D Materials by Flash Joule Heating

Journal article

Peer reviewed

Millisecond Conversion of Metastable 2D Materials by Flash Joule Heating

Weiyin Chen, Zhe Wang, Ksenia Bets, Duy Xuan Luong, Muqing Ren, Michael G. Stanford, Emily A. McHugh, Wala A. Algozeeb, Hua Guo, Guanhui Gao, …

ACS nano, Vol.15(1), pp.1282-1290

01/26/2021

DOI: 10.1021/acsnano.0c08460

PMID: 33412009

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https://www.osti.gov/servlets/purl/1798512View

Open Access

Abstract

Controllable phase engineering is vital for precisely tailoring material properties since different phase structures have various electronic states and atomic arrangements. Rapid synthesis of thermodynamically metastable materials, especially two-dimensional metastable materials, with high efficiency and low cost remains a large challenge. Here we report flash Joule heating (FJH) as an electrothermal method to achieve the bulk conversion of transition metal dichalcogenides, MoS2 and WS2, from 2H phases to 1T phases in milliseconds. The conversions can reach up to 76% of flash MoS2 using tungsten powder as conductive additive. Different degrees of phase conversion can be realized by controlling the FJH conditions, such as reaction duration and additives, which allows the study of ratio-dependent properties. First-principles calculations confirm that structural processes associated with the FJH, such as vacancy formation and charge accumulation, result in stabilization of the 1T phases. FJH offers rapid access to bulk quantities of the hitherto hard-to-access 1T phases, a promising method for further fundamental research and diverse applications of metastable phases.

Materials Science

Physical Sciences

Technology

Chemistry

Chemistry, Multidisciplinary

Chemistry, Physical

Materials Science, Multidisciplinary

Nanoscience & Nanotechnology

Science & Technology

Science & Technology - Other Topics

Details

Title: Subtitle: Millisecond Conversion of Metastable 2D Materials by Flash Joule Heating
Creators: Weiyin Chen - Rice University
Zhe Wang - Rice University
Ksenia Bets - Rice University
Duy Xuan Luong - Rice University
Muqing Ren - Rice University
Michael G. Stanford - Rice University
Emily A. McHugh - Rice University
Wala A. Algozeeb - Rice University
Hua Guo - Rice University
Guanhui Gao - Rice University
Bing Deng - Rice University
Jinhang Chen - Rice University
John Tianci Li - Rice University
William T. Carsten - Rice University
Boris Yakobson - Rice University
James M. Tour - Welch Foundation
Resource Type: Journal article
Publication Details: ACS nano, Vol.15(1), pp.1282-1290
DOI: 10.1021/acsnano.0c08460
PMID: 33412009
NLM abbreviation: ACS Nano
ISSN: 1936-0851
eISSN: 1936-086X
Publisher: Amer Chemical Soc
Number of pages: 9
Grant note: FA9550-19-1-0296 / Air Force Office of Scientific Research; United States Department of Defense; Air Force Office of Scientific Research (AFOSR) DE-FE0031794 / DOE-NETL; United States Department of Energy (DOE) DE-SC0012547 / Department of Energy, BES; United States Department of Energy (DOE)
Language: English
Date published: 01/26/2021
Academic Unit: Chemical and Biochemical Engineering
Record Identifier: 9984696874902771

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