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Title: Synthesis of millimeter-scale transition metal dichalcogenides single crystals

Journal Article · · Advanced Functional Materials
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  1. Rice Univ., Houston, TX (United States)
  2. Vanderbilt Univ., Nashville, TN (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

The emergence of semiconducting transition metal dichalcogenide (TMD) atomic layers has opened up unprecedented opportunities in atomically thin electronics. Yet the scalable growth of TMD layers with large grain sizes and uniformity has remained very challenging. Here is reported a simple, scalable chemical vapor deposition approach for the growth of MoSe2 layers is reported, in which the nucleation density can be reduced from 105 to 25 nuclei cm-2, leading to millimeter-scale MoSe2 single crystals as well as continuous macrocrystalline films with millimeter size grains. The selective growth of monolayers and multilayered MoSe2 films with well-defined stacking orientation can also be controlled via tuning the growth temperature. In addition, periodic defects, such as nanoscale triangular holes, can be engineered into these layers by controlling the growth conditions. The low density of grain boundaries in the films results in high average mobilities, around ≈42 cm2 V-1 s-1, for back-gated MoSe2 transistors. This generic synthesis approach is also demonstrated for other TMD layers such as millimeter-scale WSe2 single crystals.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS); Vanderbilt Univ., Nashville, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
AC05-00OR22725; FG02-09ER46554
OSTI ID:
1261342
Alternate ID(s):
OSTI ID: 1597769
Journal Information:
Advanced Functional Materials, Vol. 26, Issue 12; ISSN 1616-301X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 130 works
Citation information provided by
Web of Science

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Electric Field Effect in Two-Dimensional Transition Metal Dichalcogenides journal December 2016
Sulfur‐Mastery: Precise Synthesis of 2D Transition Metal Dichalcogenides journal May 2019
Sodium‐Mediated Epitaxial Growth of 2D Ultrathin Sb 2 Se 3 Flakes for Broadband Photodetection journal March 2020
Metal-Semiconductor Phase-Transition in WSe 2(1- x ) Te 2 x Monolayer journal November 2016
A Simple Method for Synthesis of High-Quality Millimeter-Scale 1T′ Transition-Metal Telluride and Near-Field Nanooptical Properties journal August 2017
Ultrafast Growth of High-Quality Monolayer WSe 2 on Au journal June 2017
Thermodynamically Stable Synthesis of Large-Scale and Highly Crystalline Transition Metal Dichalcogenide Monolayers and their Unipolar n-n Heterojunction Devices journal July 2017
Recent Developments in Controlled Vapor‐Phase Growth of 2D Group 6 Transition Metal Dichalcogenides journal December 2018
Low-Temperature Deposition of Layered SnSe 2 for Heterojunction Diodes journal April 2018
2D Transition Metal Dichalcogenide Thin Films Obtained by Chemical Gas Phase Deposition Techniques journal October 2018
Growth Dynamics of Millimeter‐Sized Single‐Crystal Hexagonal Boron Nitride Monolayers on Secondary Recrystallized Ni (100) Substrates journal September 2019
Booming Development of Group IV–VI Semiconductors: Fresh Blood of 2D Family journal June 2016
Two-Dimensional Semiconductors: From Materials Preparation to Electronic Applications journal April 2017
Electronic Properties of Bulk and Monolayer TMDs: Theoretical Study Within DFT Framework (GVJ-2e Method) journal September 2017
Recent Advances in Synthesis and Applications of 2D Junctions journal August 2018
Electronic structure properties of transition metal dichalcogenide nanotubes: a DFT benchmark journal August 2019
Stacking-controllable interlayer coupling and symmetric configuration of multilayered MoS2 journal February 2018
Batch production of 6-inch uniform monolayer molybdenum disulfide catalyzed by sodium in glass journal March 2018
Transition metal dichalcogenides bilayer single crystals by reverse-flow chemical vapor epitaxy journal February 2019
Engineering grain boundaries at the 2D limit for the hydrogen evolution reaction journal January 2020
Origin of ultrafast growth of monolayer WSe2 via chemical vapor deposition journal February 2019
A library of atomically thin metal chalcogenides journal April 2018
Group 6 transition metal dichalcogenide nanomaterials: synthesis, applications and future perspectives journal January 2018
Large-area synthesis of monolayer MoSe 2 films on SiO 2 /Si substrates by atmospheric pressure chemical vapor deposition journal January 2017
van der Waals interaction-induced photoluminescence weakening and multilayer growth in epitaxially aligned WS 2 journal January 2018
Large-scale synthesis of 2D metal dichalcogenides journal January 2018
Real time optical observation and control of atomically thin transition metal dichalcogenide synthesis journal January 2019
An approach to high-throughput growth of submillimeter transition metal dichalcogenide single crystals journal January 2019
Chemical vapor deposition of monolayer-thin WS 2 crystals from the WF 6 and H 2 S precursors at low deposition temperature journal March 2019
Large-area synthesis and photoelectric properties of few-layer MoSe 2 on molybdenum foils journal February 2018
Revealing the microscopic CVD growth mechanism of MoSe 2 and the role of hydrogen gas during the growth procedure journal May 2018
Controlled growth of MoS 2 via surface-energy alterations journal October 2019
Quick Optical Identification of the Defect Formation in Monolayer WSe2 for Growth Optimization journal August 2019
Micro-Extinction Spectroscopy (MExS): a versatile optical characterization technique journal July 2018
Thermodynamically Stable Synthesis of Large-Scale and Highly Crystalline Transition Metal Dichalcogenide Monolayers and their Unipolar n-n Heterojunction Devices. text January 2017
Micro-Extinction Spectroscopy (MExS): a versatile optical characterization technique collection January 2018
Micro-Extinction Spectroscopy (MExS): a versatile optical characterization technique text January 2018
Real time optical observation and control of atomically thin transition metal dichalcogenide synthesis preprint January 2018