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Title: Controlling the metal to semiconductor transition of MoS2 and WS2 in solution

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/ja5107145· OSTI ID:1235256
 [1];  [2];  [1];  [3];  [1];  [3];  [4];  [2]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Northwestern Univ., Evanston, IL (United States)
  3. Univ. of Virginia, Charlottesville, VA (United States)
  4. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Univ. of New Mexico, Albuquerque, NM (United States)

Lithiation-exfoliation produces single to few-layered MoS2 and WS2 sheets dispersible in water. However, the process transforms them from the pristine semiconducting 2H phase to a distorted metallic phase. Recovery of the semiconducting properties typically involves heating of the chemically exfoliated sheets at elevated temperatures. Therefore, it has been largely limited to sheets deposited on solid substrates. We report the dispersion of chemically exfoliated MoS2 sheets in high boiling point organic solvents enabled by surface functionalization and the controllable recovery of their semiconducting properties directly in solution. Ultimately, this process connects the scalability of chemical exfoliation with the simplicity of solution processing, enabling a facile method for tuning the metal to semiconductor transitions of MoS2 and WS2 within a liquid medium.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1235256
Report Number(s):
SAND-2015-0020J; 558288
Journal Information:
Journal of the American Chemical Society, Vol. 137; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 134 works
Citation information provided by
Web of Science

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Cited By (37)

Pure and stable metallic phase molybdenum disulfide nanosheets for hydrogen evolution reaction journal February 2016
The organic–2D transition metal dichalcogenide heterointerface journal January 2018
Molecular chemistry approaches for tuning the properties of two-dimensional transition metal dichalcogenides journal January 2018
Dual-phase MoS 2 as a high-performance sodium-ion battery anode journal January 2020
Tailoring the physicochemical properties of solution-processed transition metal dichalcogenides via molecular approaches journal January 2019
Air Passivation of Chalcogen Vacancies in Two-Dimensional Semiconductors journal November 2015
Targeted bottom-up synthesis of 1T-phase MoS2 arrays with high electrocatalytic hydrogen evolution activity by simultaneous structure and morphology engineering journal March 2018
Functionalization of Two-Dimensional Transition-Metal Dichalcogenides journal February 2016
Rapid preparation of single-layer transition metal dichalcogenide nanosheets via ultrasonication enhanced lithium intercalation journal January 2016
Group 6 transition metal dichalcogenide nanomaterials: synthesis, applications and future perspectives journal January 2018
Pyrolytically Modified Polyacrylonitrile-Covalently Grafted MoS 2 Nanosheets for a Nonvolatile Rewritable Memory Device journal January 2018
Solution-Processed Two-Dimensional MoS 2 Nanosheets: Preparation, Hybridization, and Applications journal June 2016
Significant Exciton Brightening in Monolayer Tungsten Disulfides via Fluorination: n-Type Gas Sensing Semiconductors journal September 2016
Nano Ag‐Decorated MoS 2 Nanosheets from 1T to 2H Phase Conversion for Photocatalytically Reducing CO 2 to Methanol journal August 2019
Two-dimensional nanosheets of MoS 2 : a promising material with high dielectric properties and microwave absorption performance journal January 2015
Prussian Blue@MoS 2 Layer Composites as Highly Efficient Cathodes for Sodium- and Potassium-Ion Batteries journal December 2017
Synthesis of MoX2 (X = Se or S) monolayers with high-concentration 1T′ phase on 4H/fcc-Au nanorods for hydrogen evolution journal May 2019
Direct, large area growth of few-layered MoS 2 nanostructures on various flexible substrates: growth kinetics and its effect on photodetection studies journal January 2018
Hydrothermal growth of few layer 2H-MoS 2 for heterojunction photodetector and visible light induced photocatalytic applications journal January 2016
Simultaneously ‘pushing’ and ‘pulling’ graphene oxide into low-polar solvents through a designed interface journal June 2018
Electronic structure of two-dimensional In and Bi metal on BN nanosheets journal January 2019
Structurally Deformed MoS 2 for Electrochemically Stable, Thermally Resistant, and Highly Efficient Hydrogen Evolution Reaction journal October 2017
Facial Synthesis of 1T Phase MoS 2 Nanoflowers via Anion Exchange Method for Efficient Hydrogen Evolution journal February 2019
Polytype control of MoS 2 using chemical bath deposition journal May 2019
Recent Development of Metallic (1T) Phase of Molybdenum Disulfide for Energy Conversion and Storage journal March 2018
Emerging 2D Materials Produced via Electrochemistry journal January 2020
High-Power Supercapacitive Properties of Graphene Oxide Hybrid Films with Highly Conductive Molybdenum Disulfide Nanosheets journal September 2015
Possibility of combining ferroelectricity and Rashba-like spin splitting in monolayers of the 1 T -type transition-metal dichalcogenides M X 2 ( M = Mo , W ; X = S , Se , Te ) journal November 2016
Bubble-template-assisted synthesis of hollow fullerene-like MoS 2 nanocages as a lithium ion battery anode material journal January 2016
Oxidation suppression during hydrothermal phase reversion allows synthesis of monolayer semiconducting MoS 2 in stable aqueous suspension journal January 2017
Hydrothermal synthesis of stable metallic 1T phase WS 2 nanosheets for thermoelectric application journal December 2017
Surface chemistry and catalysis confined under two-dimensional materials journal January 2017
Tuning Electron Transport Direction through the Deposition Sequence of MoS 2 and WS 2 on Fluorine‐Doped Tin Oxide for Improved Electrocatalytic Reduction Efficiency journal April 2019
Metallic 1T phase MoS 2 nanosheets as a highly efficient co-catalyst for the photocatalytic hydrogen evolution of CdS nanorods journal January 2016
Air Passivation of Chalcogen Vacancies in Two-Dimensional Semiconductors journal November 2015
Air passivation of chalcogen vacancies in two-dimensional semiconductors text January 2015
A novel WS2 nanowire-nanoflake hybrid material synthesized from WO3 nanowires in sulfur vapor journal May 2016

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