skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Nucleation and growth of molybdenum disulfide grown by thermal atomic layer deposition on metal oxides

Journal Article · · Journal of Vacuum Science and Technology A
DOI:https://doi.org/10.1116/6.0002024· OSTI ID:1899376

To enable greater control over thermal atomic layer deposition (ALD) of molybdenum disulfide (MoS2), here we report studies of the reactions of molybdenum hexafluoride (MoF6) and hydrogen sulfide (H2S) with metal oxide substrates from nucleation to few-layer films. In situ quartz crystal microbalance experiments performed at 150, 200, and 250 °C revealed temperature-dependent nucleation behavior of the MoF6 precursor, which is attributed to variations in surface hydroxyl concentration with temperature. In situ Fourier transform infrared spectroscopy coupled with ex situ x-ray photoelectron spectroscopy (XPS) indicated the presence of molybdenum oxide and molybdenum oxyfluoride species during nucleation. Density functional theory calculations additionally support the formation of these species as well as predicted metal oxide to fluoride conversion. Residual gas analysis revealed reaction by-products, and the combined experimental and computational results provided insights into proposed nucleation surface reactions. With additional ALD cycles, Fourier transform infrared spectroscopy indicated steady film growth after ∼13 cycles at 200 °C. XPS revealed that higher deposition temperatures resulted in a higher fraction of MoS2 within the films. Deposition temperature was found to play an important role in film morphology with amorphous films obtained at 200 °C and below, while layered films with vertical platelets were observed at 250 °C. These results provide an improved understanding of MoS2 nucleation, which can guide surface preparation for the deposition of few-layer films and advance MoS2 toward integration into device manufacturing.

Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357; SC0014664; No. DE-AC07-05ID14517; DOI: 10.18122/B2S41H
OSTI ID:
1899376
Journal Information:
Journal of Vacuum Science and Technology A, Journal Name: Journal of Vacuum Science and Technology A Vol. 40 Journal Issue: 6; ISSN 0734-2101
Publisher:
American Vacuum SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (65)

Unveiling the Growth Mechanism of MoS 2 with Chemical Vapor Deposition: From Two-Dimensional Planar Nucleation to Self-Seeding Nucleation journal January 2018
Molybdenum Atomic Layer Deposition Using MoF 6 and Si 2 H 6 as the Reactants journal April 2011
Fourier transform infrared (FTIR) spectroscopy journal June 2009
X-ray photoelectron spectroscopy study of low-temperature molybdenum oxidation process journal June 1999
Structural imaging of a thick-walled carbon microtubule journal August 1994
Atomic Layer Deposition of MgO Using Bis(ethylcyclopentadienyl)magnesium and H2O journal January 2009
Large-area growth of high-quality graphene/MoS2 vertical heterostructures by chemical vapor deposition with nucleation control journal October 2020
X-ray photoelectron spectroscopy characterization of amorphous molybdenum oxysulfide thin films journal March 1995
Catalyzed Kinetic Growth in Two-Dimensional MoS 2 journal July 2020
The evolution of the Mo5+ oxidation state in the thermochromic effect of MoO3 thin films deposited by rf magnetron sputtering journal October 2017
High-Temperature In Situ Investigation of Chemical Vapor Deposition to Reveal Growth Mechanisms of Monolayer Molybdenum Disulfide journal June 2020
In Situ FTIR Characterization of Growth Inhibition in Atomic Layer Deposition Using Reversible Surface Functionalization journal March 2013
Atomic layer deposition of ultrathin and conformal Al2O3 films on BN particles journal August 2000
Sulfidation mechanism by molybdenum catalysts supported on silica/silicon(100) model support studied by surface spectroscopy journal June 1993
Amorphous MoS2 Photodetector with Ultra-Broadband Response journal June 2019
Role of Initial Precursor Chemisorption on Incubation Delay for Molybdenum Oxide Atomic Layer Deposition journal November 2016
HSC Chemistry for Windows, 2.0 journal January 1996
Atomic layer deposition of molybdenum disulfide films using MoF 6 and H 2 S
  • Mane, Anil U.; Letourneau, Steven; Mandia, David J.
  • Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 36, Issue 1 https://doi.org/10.1116/1.5003423
journal January 2018
VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data journal October 2011
Oxidation of core–shell MoO2–MoS2nanoflakes in different O2ambience journal March 2017
A Review of Atomic Scale Characterization Techniques of Molybdenum Disulfide (MoS2) journal March 2019
Atomic‐Layer‐Deposition‐Based 2D Transition Metal Chalcogenides: Synthesis, Modulation, and Applications journal March 2021
Surface chemistry of atomic layer deposition: A case study for the trimethylaluminum/water process journal June 2005
MoS2, MoSe2, WS2 and WSe2 Thin Films for Photovoltaics journal March 1994
Dynamic Photochemical and Optoelectronic Control of Photonic Fano Resonances via Monolayer MoS 2 Trions journal January 2018
Hydration behavior of MgO single crystals and thin films journal December 2003
Desorption of H2O from a hydroxylated single-crystal α-Al2O3(0001) surface journal October 1998
Batch production of 6-inch uniform monolayer molybdenum disulfide catalyzed by sodium in glass journal March 2018
In-situ observation of Mo-O stretching vibrations during the reduction of MoO3 with hydrogen by diffuse reflectance FTIR spectroscopy journal November 1989
Atomic Layer Deposition of Hafnium and Zirconium Oxides Using Metal Amide Precursors journal October 2002
Probing the Origin and Suppression of Vertically Oriented Nanostructures of 2D WS 2 Layers journal December 2019
Raman Shifts in Electron-Irradiated Monolayer MoS 2 journal March 2016
Three-Dimensional Architectures Constructed from Transition-Metal Dichalcogenide Nanomaterials for Electrochemical Energy Storage and Conversion journal December 2017
Structural Evolution of Molybdenum Disulfide Prepared by Atomic Layer Deposition for Realization of Large Scale Films in Microelectronic Applications journal July 2018
Growth of Monolayer and Multilayer MoS2 Films by Selection of Growth Mode: Two Pathways via Chemisorption and Physisorption of an Inorganic Molecular Precursor journal January 2021
The Effect of the Dehydration of MgO Films on their XPS Spectra and Electrical Properties journal January 2007
Photoinduced Electron Transfer in a MoS2/Anthracene Mixed-Dimensional Heterojunction in Aqueous Media journal June 2020
From Bulk to Monolayer MoS2: Evolution of Raman Scattering journal January 2012
2-D Material Molybdenum Disulfide Analyzed by XPS journal December 2014
Highly Uniform Trilayer Molybdenum Disulfide for Wafer-Scale Device Fabrication journal August 2014
Atomic Layer Deposition of AlF 3 Using Trimethylaluminum and Hydrogen Fluoride journal June 2015
Anomalous Lattice Vibrations of Single- and Few-Layer MoS 2 journal March 2010
Indium Oxide ALD Using Cyclopentadienyl Indium and Mixtures of H 2 O and O 2 journal October 2011
Monolithic Interface Contact Engineering to Boost Optoelectronic Performances of 2D Semiconductor Photovoltaic Heterojunctions journal March 2020
Vapour density and vibrational spectra of MoOF4 and WOF4. The structure of crystalline WOF4 journal January 1974
Infrared and Raman studies of amorphous MoS3 and poorly crystalline MoS2 journal November 1981
A Raman metrology approach to quality control of 2D MoS 2 film fabrication journal April 2017
Low-temperature plasma-enhanced atomic layer deposition of 2-D MoS 2 : large area, thickness control and tuneable morphology journal January 2018
Simulating Raman spectra by combining first-principles and empirical potential approaches with application to defective MoS2 journal May 2020
First-principles studies of MoF6 absorption on hydroxylated and non-hydroxylated metal oxide surfaces and implications for atomic layer deposition of MoS2 journal March 2021
Few-Layer MoS 2 : A Promising Layered Semiconductor journal April 2014
Bandgap tunability at single-layer molybdenum disulphide grain boundaries journal February 2015
(Invited) Synthesis, Characterization, and Application of Tunable Resistance Coatings Prepared by Atomic Layer Deposition journal August 2013
Synthesis and characterization of nanostructured molybdenum oxynitride films fabricated by sub-atmospheric chemical vapor deposition journal November 2019
Cooperation between adsorbates accounts for the activation of atomic layer deposition reactions journal January 2015
A synoptic review of MoS2: Synthesis to applications journal April 2019
Viscous flow reactor with quartz crystal microbalance for thin film growth by atomic layer deposition journal August 2002
DFT Studies of the Structure and Vibrational Spectra of Isolated Molybdena Species Supported on Silica journal December 2006
Opening Two-Dimensional Materials for Energy Conversion and Storage: A Concept journal June 2017
Layer-controlled CVD growth of large-area two-dimensional MoS 2 films journal January 2015
Single-layer MoS2 transistors journal January 2011
Multifunctional ultrasmall-MoS2/graphene composites for high sulfur loading Li–S batteries journal January 2020
Size Effects in Carbon Nanotubes journal August 1998
Island growth as a growth mode in atomic layer deposition: A phenomenological model journal December 2004
Quartz Crystal Microbalance Studies of Al 2 O 3 Atomic Layer Deposition Using Trimethylaluminum and Water at 125 °C journal January 2010

Similar Records

Atomic layer deposition of molybdenum disulfide films using MoF 6 and H 2 S
Journal Article · Mon Jan 01 00:00:00 EST 2018 · Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films · OSTI ID:1899376

Vapor-phase grafting of a model aminosilane compound to Al2O3, ZnO, and TiO2 surfaces prepared by atomic layer deposition
Journal Article · Sat Jun 05 00:00:00 EDT 2021 · Applied Surface Science · OSTI ID:1899376

Waterless TiO{sub 2} atomic layer deposition using titanium tetrachloride and titanium tetraisopropoxide
Journal Article · Wed Jan 15 00:00:00 EST 2014 · Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films · OSTI ID:1899376

Related Subjects