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

Title: Selective Transfer of Rotationally Commensurate MoS2 from an Epitaxially Grown van der Waals Heterostructure

Journal Article · · Chemistry of Materials

We report that large-scale synthesis of high-quality two-dimensional (2D) semiconductors is critical for their incorporation in emerging electronic and optoelectronic technologies. In particular, chemical vapor deposition (CVD) of transition-metal dichalcogenides (TMDs) via van der Waals epitaxy on epitaxial graphene (EG) leads to rotationally commensurate TMDs in contrast to randomly aligned TMDs grown on amorphous oxide substrates. However, the interlayer coupling between TMDs and EG hinders the investigation and utilization of the intrinsic electronic properties of the resulting TMDs, thus requiring their isolation from the EG growth substrate. To address this issue, we report here a technique for selectively transferring monolayer molybdenum disulfide (MoS2) from CVD-grown MoS2-EG van der Waals heterojunctions using copper (Cu) adhesion layers. The choice of Cu as the adhesion layer is motivated by density functional theory calculations that predict the preferential binding of monolayer MoS2 to Cu in contrast to graphene. Atomic force microscopy and optical spectroscopy confirm the large-scale transfer of rotationally commensurate MoS2 onto SiO2/Si substrates without cracks, wrinkles, or residues. Furthermore, the transferred MoS2 shows high performance in field-effect transistors with mobilities of up to 30 cm2/V s and on/off ratios of up to 106 at room temperature. Lastly, this transfer technique can likely be generalized to other TMDs and related 2D materials grown on EG, thus offering a broad range of benefits in nanoelectronic, optoelectronic, and photonic applications.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for Light Energy Activated Redox Processes (LEAP); Northwestern Univ., Evanston, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0001059
OSTI ID:
1566489
Journal Information:
Chemistry of Materials, Vol. 30, Issue 23; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

References (48)

Van der Waals heterostructures journal July 2013
Two-dimensional flexible nanoelectronics journal December 2014
2D transition metal dichalcogenides journal June 2017
Stacking of Two-Dimensional Materials in Lateral and Vertical Directions journal August 2014
Probing Out-of-Plane Charge Transport in Black Phosphorus with Graphene-Contacted Vertical Field-Effect Transistors journal March 2016
Single-layer MoS2 transistors journal January 2011
Ultrasensitive photodetectors based on monolayer MoS2 journal June 2013
Enhanced Raman Scattering of Rhodamine 6G Films on Two-Dimensional Transition Metal Dichalcogenides Correlated to Photoinduced Charge Transfer journal December 2015
Synthesis of Large-Area MoS2 Atomic Layers with Chemical Vapor Deposition journal March 2012
Large-Area Vapor-Phase Growth and Characterization of MoS2 Atomic Layers on a SiO2 Substrate journal February 2012
Shape Evolution of Monolayer MoS 2 Crystals Grown by Chemical Vapor Deposition journal November 2014
Rapid Wafer-Scale Growth of Polycrystalline 2H-MoS 2 by Pulsed Metal–Organic Chemical Vapor Deposition journal July 2017
Chemical vapor deposition of monolayer MoS 2 directly on ultrathin Al 2 O 3 for low-power electronics journal January 2017
Grains and grain boundaries in highly crystalline monolayer molybdenum disulphide journal May 2013
Electrical Transport Properties of Polycrystalline Monolayer Molybdenum Disulfide journal July 2014
Surface Recombination Limited Lifetimes of Photoexcited Carriers in Few-Layer Transition Metal Dichalcogenide MoS 2 journal November 2015
Visualizing nanoscale excitonic relaxation properties of disordered edges and grain boundaries in monolayer molybdenum disulfide journal August 2015
Large-Area Epitaxial Monolayer MoS 2 journal February 2015
Rotationally Commensurate Growth of MoS 2 on Epitaxial Graphene journal November 2015
Point Defects and Grain Boundaries in Rotationally Commensurate MoS 2 on Epitaxial Graphene journal March 2016
Large Area, Few-Layer Graphene Films on Arbitrary Substrates by Chemical Vapor Deposition journal January 2009
Transfer of Large-Area Graphene Films for High-Performance Transparent Conductive Electrodes journal December 2009
Graphene transfer: key for applications journal January 2012
The effect of chemical residues on the physical and electrical properties of chemical vapor deposited graphene transferred to SiO 2 journal September 2011
Principle of direct van der Waals epitaxy of single-crystalline films on epitaxial graphene journal September 2014
Remote epitaxy through graphene enables two-dimensional material-based layer transfer journal April 2017
Layer-Resolved Graphene Transfer via Engineered Strain Layers journal October 2013
Interface structure and mechanics between graphene and metal substrates: a first-principles study journal November 2010
Interfacial Properties of Monolayer and Bilayer MoS2 Contacts with Metals: Beyond the Energy Band Calculations journal March 2016
Chemical accuracy for the van der Waals density functional journal December 2009
van der Waals Interactions in Layered Lithium Cobalt Oxides journal August 2015
Layered-Layered-Spinel Cathode Materials Prepared by a High-Energy Ball-Milling Process for Lithium-ion Batteries journal December 2015
Organic Dye Graphene Hybrid Structures with Spectral Color Selectivity journal July 2016
Comprehensive Enhancement of Nanostructured Lithium-Ion Battery Cathode Materials via Conformal Graphene Dispersion journal March 2017
Quasi-Periodic Nanoripples in Graphene Grown by Chemical Vapor Deposition and Its Impact on Charge Transport journal January 2012
Uniaxial Strain on Graphene: Raman Spectroscopy Study and Band-Gap Opening journal October 2008
Universal Transfer and Stacking of Chemical Vapor Deposition Grown Two-Dimensional Atomic Layers with Water-Soluble Polymer Mediator journal May 2016
The effect of the substrate on the Raman and photoluminescence emission of single-layer MoS2 journal April 2014
Anomalous Lattice Vibrations of Single- and Few-Layer MoS 2 journal March 2010
From Bulk to Monolayer MoS2: Evolution of Raman Scattering journal January 2012
Exceptional Tunability of Band Energy in a Compressively Strained Trilayer MoS 2 Sheet journal July 2013
Local Strain Engineering in Atomically Thin MoS 2 journal October 2013
Controlled van der Waals Epitaxy of Monolayer MoS 2 Triangular Domains on Graphene journal February 2015
Elastic Properties of Chemical-Vapor-Deposited Monolayer MoS 2 , WS 2 , and Their Bilayer Heterostructures journal August 2014
Large area molybdenum disulphide- epitaxial graphene vertical Van der Waals heterostructures journal June 2016
Band-like transport in high mobility unencapsulated single-layer MoS 2 transistors journal April 2013
High-mobility three-atom-thick semiconducting films with wafer-scale homogeneity journal April 2015
Statistical Study of Deep Submicron Dual-Gated Field-Effect Transistors on Monolayer Chemical Vapor Deposition Molybdenum Disulfide Films journal May 2013

Cited By (2)

A unique hierarchical composite with auricular-like MoS2 nanosheets erected on graphene for enhanced lithium storage journal August 2019
2D transition metal dichalcogenide nanomaterials: advances, opportunities, and challenges in multi-functional polymer nanocomposites journal January 2020