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

Title: Dislocation-driven growth of two-dimensional lateral quantum-well superlattices

Journal Article · · Science Advances

The advent of two-dimensional (2D) materials has led to extensive studies of heterostructures for novel applications. 2D lateral multiheterojunctions and superlattices have been recently demonstrated, but the available growth methods can only produce features with widths in the micrometer or, at best, 100-nm scale and usually result in rough and defective interfaces with extensive chemical intermixing. Widths smaller than 5 nm, which are needed for quantum confinement effects and quantum-well applications, have not been achieved. We demonstrate the growth of sub–2-nm quantum-well arrays in semiconductor monolayers, driven by the climb of misfit dislocations in a lattice-mismatched sulfide/selenide heterointerface. Density functional theory calculations provide an atom-by-atom description of the growth mechanism. The calculated energy bands reveal type II alignment suitable for quantum wells, suggesting that the structure could, in principle, be turned into a “conduit” of conductive nanoribbons for interconnects in future 2D integrated circuits via n-type modulation doping. This misfit dislocation–driven growth can be applied to different combinations of 2D monolayers with lattice mismatch, paving the way to a wide range of 2D quantum-well superlattices with controllable band alignment and nanoscale width.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Vanderbilt Univ., Nashville, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725; FG02-09ER46554
OSTI ID:
1456787
Alternate ID(s):
OSTI ID: 1597882
Journal Information:
Science Advances, Vol. 4, Issue 3; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 27 works
Citation information provided by
Web of Science

References (50)

Atom-by-atom structural and chemical analysis by annular dark-field electron microscopy journal March 2010
Generalized Gradient Approximation Made Simple journal October 1996
Vapour phase growth and grain boundary structure of molybdenum disulphide atomic layers journal June 2013
Band offsets and heterostructures of two-dimensional semiconductors journal January 2013
Projector augmented-wave method journal December 1994
Predicting Dislocations and Grain Boundaries in Two-Dimensional Metal-Disulfides from the First Principles journal December 2012
Hybrid functionals based on a screened Coulomb potential journal May 2003
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Epitaxial growth of a monolayer WSe2-MoS2 lateral p-n junction with an atomically sharp interface journal July 2015
Superlattice and Negative Differential Conductivity in Semiconductors journal January 1970
Defects in epitaxial multilayers: I. Misfit dislocations journal December 1974
Van der Waals heterostructures journal July 2013
Vertical and in-plane heterostructures from WS2/MoS2 monolayers journal September 2014
Two-Step Growth of Two-Dimensional WSe 2 /MoSe 2 Heterostructures journal August 2015
Robust epitaxial growth of two-dimensional heterostructures, multiheterostructures, and superlattices journal August 2017
Electric Field Effect in Atomically Thin Carbon Films journal October 2004
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Recent Advances in Two-Dimensional Materials beyond Graphene journal October 2015
Quantum spin Hall states in graphene interacting with WS 2 or WSe 2 journal December 2014
In-plane heterostructures of graphene and hexagonal boron nitride with controlled domain sizes journal January 2013
Heteroepitaxial Growth of Two-Dimensional Hexagonal Boron Nitride Templated by Graphene Edges journal January 2014
Lateral epitaxial growth of two-dimensional layered semiconductor heterojunctions journal September 2014
Growth of nanowire superlattice structures for nanoscale photonics and electronics journal February 2002
Use of quantum‐well superlattices to obtain a high figure of merit from nonconventional thermoelectric materials journal December 1993
Lateral Epitaxy of Atomically Sharp WSe 2 /WS 2 Heterojunctions on Silicon Dioxide Substrates journal October 2016
Parallel Stitching of 2D Materials journal January 2016
Quantum Cascade Laser journal April 1994
A roadmap for graphene journal October 2012
Patterned arrays of lateral heterojunctions within monolayer two-dimensional semiconductors journal July 2015
A climbing image nudged elastic band method for finding saddle points and minimum energy paths journal December 2000
High-precision sampling for Brillouin-zone integration in metals journal August 1989
Oriented graphene nanoribbons embedded in hexagonal boron nitride trenches journal March 2017
Improved tangent estimate in the nudged elastic band method for finding minimum energy paths and saddle points journal December 2000
Intrinsic Structural Defects in Monolayer Molybdenum Disulfide journal May 2013
Tunneling in a finite superlattice journal June 1973
Quantitative measurement of displacement and strain fields from HREM micrographs journal August 1998
Modulation Doping of GaAs/AlGaAs Core–Shell Nanowires With Effective Defect Passivation and High Electron Mobility journal January 2015
Properties of Individual Dopant Atoms in Single-Layer MoS 2 : Atomic Structure, Migration, and Enhanced Reactivity journal February 2014
Lateral heterojunctions within monolayer MoSe2–WSe2 semiconductors journal August 2014
Misfit strain and misfit dislocations in lattice mismatched epitaxial layers and other systems journal June 1997
Defects in epitaxial multilayers journal February 1976
Tuning layer-hybridized moiré excitons by the quantum-confined Stark effect journal November 2020
High-resolution X-ray luminescence extension imaging journal February 2021
Direct observation of chemical short-range order in a medium-entropy alloy journal April 2021
Electronic structure of AlFeN films exhibiting crystallographic orientation change from c- to a-axis with Fe concentrations and annealing effect journal February 2020
Defects in epitaxial multilayers: II. Dislocation pile-ups, threading dislocations, slip lines and cracks journal July 1975
Vapor Phase Growth and Grain Boundary Structure of Molybdenum Disulfide Atomic Layers text January 2013
Quantum spin Hall states in graphene interacting with WS$_2$ or WSe$_2$ text January 2014
Electric Field Effect in Atomically Thin Carbon Films text January 2004
Single Atom Microscopy journal November 2012

Cited By (5)

Strain-driven growth of ultra-long two-dimensional nano-channels journal February 2020
Epitaxial growth and physical properties of 2D materials beyond graphene: from monatomic materials to binary compounds journal January 2018
Superlattices based on van der Waals 2D materials journal January 2019
Selective Growth of WSe2 with Graphene Contacts journal March 2020
Quantitative phase-field modeling of dendritic growth in two and three dimensions journal April 1998

Similar Records

Photoluminescence studies of Ga(As,P) strained-layer superlattices
Conference · Mon Aug 13 00:00:00 EDT 1984 · OSTI ID:1456787

Two-dimensional GaSe/MoSe2 misfit bilayer heterojunctions by van der Waals epitaxy
Journal Article · Fri Apr 01 00:00:00 EDT 2016 · Science Advances · OSTI ID:1456787

Coherent, atomically thin transition-metal dichalcogenide superlattices with engineered strain
Journal Article · Thu Mar 08 00:00:00 EST 2018 · Science · OSTI ID:1456787

Related Subjects