DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Scalable Synthesis of Monolayer Hexagonal Boron Nitride on Graphene with Giant Bandgap Renormalization

Journal Article · · Advanced Materials
ORCiD logo [1];  [1];  [2];  [3];  [4];  [1];  [1];  [1];  [1];  [4];  [1];  [5];  [4];  [1];  [4];  [3];  [4];  [1]
  1. Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor MI 48109 USA
  2. Department of Physics Ohio State University Columbus OH 43210 USA, UES Inc. 4401 Dayton‐Xenia Rd Dayton OH 45432 USA
  3. Department of Physics Ohio State University Columbus OH 43210 USA
  4. Department of Material Science and Engineering University of Michigan Ann Arbor MI 48109 USA
  5. Department of Mechanical Engineering and Materials Science Yale University New Haven CT 06516 USA

Abstract Monolayer hexagonal boron nitride (hBN) has been widely considered a fundamental building block for 2D heterostructures and devices. However, the controlled and scalable synthesis of hBN and its 2D heterostructures has remained a daunting challenge. Here, an hBN/graphene (hBN/G) interface‐mediated growth process for the controlled synthesis of high‐quality monolayer hBN is proposed and further demonstrated. It is discovered that the in‐plane hBN/G interface can be precisely controlled, enabling the scalable epitaxy of unidirectional monolayer hBN on graphene, which exhibits a uniform moiré superlattice consistent with single‐domain hBN, aligned to the underlying graphene lattice. Furthermore, it is identified that the deep‐ultraviolet emission at 6.12 eV stems from the 1s‐exciton state of monolayer hBN with a giant renormalized direct bandgap on graphene. This work provides a viable path for the controlled synthesis of ultraclean, wafer‐scale, atomically ordered 2D quantum materials, as well as the fabrication of 2D quantum electronic and optoelectronic devices.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Yale Univ., New Haven, CT (United States)
Sponsoring Organization:
Kwanjeong Educational Foundation; National Science Foundation (NSF); US Army Research Office (ARO); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; W. M. Keck Foundation
Grant/Contract Number:
AC02-05CH11231; SC0021965
OSTI ID:
1864058
Journal Information:
Advanced Materials, Journal Name: Advanced Materials Journal Issue: 21 Vol. 34; ISSN 0935-9648
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

References (57)

Graphene-Assisted Epitaxy of Nitrogen Lattice Polarity GaN Films on Non-Polar Sapphire Substrates for Green Light Emitting Diodes journal March 2020
Epitaxial Growth of h‐BN on Templates of Various Dimensionalities in h‐BN–Graphene Material Systems journal January 2019
Synthesis of High‐Quality Graphene and Hexagonal Boron Nitride Monolayer In‐Plane Heterostructure on Cu–Ni Alloy journal May 2017
Hexagonal BN‐Assisted Epitaxy of Strain Released GaN Films for True Green Light‐Emitting Diodes journal September 2020
Aligned Growth of Millimeter-Size Hexagonal Boron Nitride Single-Crystal Domains on Epitaxial Nickel Thin Film journal March 2017
Oxide interfaces: pathways to novel phenomena journal July 2012
Structural and Electronic Properties of Interfaces in Graphene and Hexagonal Boron Nitride Lateral Heterostructures journal July 2016
Accelerating GW -Based Energy Level Alignment Calculations for Molecule–Metal Interfaces Using a Substrate Screening Approach journal June 2019
Monolayer Boron Nitride: Hyperspectral Imaging in the Deep Ultraviolet journal September 2021
Environmental Screening Effects in 2D Materials: Renormalization of the Bandgap, Electronic Structure, and Optical Spectra of Few-Layer Black Phosphorus journal July 2017
Highly Ordered Boron Nitride/Epigraphene Epitaxial Films on Silicon Carbide by Lateral Epitaxial Deposition journal September 2020
Honeycomb Carbon: A Review of Graphene journal January 2010
Quantum Dots and Nanoroads of Graphene Embedded in Hexagonal Boron Nitride journal May 2011
Electron Tunneling through Ultrathin Boron Nitride Crystalline Barriers journal February 2012
Van der Waals heterostructures journal July 2013
Direct-bandgap properties and evidence for ultraviolet lasing of hexagonal boron nitride single crystal journal May 2004
Giant bandgap renormalization and excitonic effects in a monolayer transition metal dichalcogenide semiconductor journal August 2014
Highly confined low-loss plasmons in graphene–boron nitride heterostructures journal December 2014
Stacked 2D materials shed light journal February 2015
Isotope engineering of van der Waals interactions in hexagonal boron nitride journal December 2017
Hexagonal boron nitride is an indirect bandgap semiconductor journal January 2016
Emergence of superlattice Dirac points in graphene on hexagonal boron nitride journal March 2012
Spin and valley quantum Hall ferromagnetism in graphene journal May 2012
Direct band-gap crossover in epitaxial monolayer boron nitride journal June 2019
Epitaxial growth of a 100-square-centimetre single-crystal hexagonal boron nitride monolayer on copper journal May 2019
Signatures of tunable superconductivity in a trilayer graphene moiré superlattice journal July 2019
Wafer-scale single-crystal hexagonal boron nitride monolayers on Cu (111) journal March 2020
Interface effects in hybrid hBN-graphene nanoribbons journal March 2019
Improvements in structural and optical properties of wafer-scale hexagonal boron nitride film by post-growth annealing journal July 2019
van der Waals heterostructures combining graphene and hexagonal boron nitride journal January 2019
Hexagonal Boron Nitride Tunnel Barriers Grown on Graphite by High Temperature Molecular Beam Epitaxy journal September 2016
Band gap engineering of graphene/ h -BN hybrid superlattices nanoribbons journal January 2013
Impact of the stacking sequence on the bandgap and luminescence properties of bulk, bilayer, and monolayer hexagonal boron nitride journal February 2019
Strain-free ultrathin AlN epilayers grown directly on sapphire by high-temperature molecular beam epitaxy journal April 2020
Graphene-assisted molecular beam epitaxy of AlN for AlGaN deep-ultraviolet light-emitting diodes journal April 2020
Thermally annealed wafer-scale h-BN films grown on sapphire substrate by molecular beam epitaxy journal April 2020
Four-inch high quality crack-free AlN layer grown on a high-temperature annealed AlN template by MOCVD journal December 2021
Interface engineering of electronic properties of graphene/boron nitride lateral heterostructures journal November 2015
Direct determination of monolayer MoS 2 and WSe 2 exciton binding energies on insulating and metallic substrates journal January 2018
Epitaxy of boron nitride monolayers for graphene-based lateral heterostructures journal March 2021
Band gap measurements of monolayer h-BN and insights into carbon-related point defects journal July 2021
Exciton-polariton properties of hexagonal BN-based microcavity and their potential applications in BEC and superconductivity journal November 2021
Intervalley scattering in hexagonal boron nitride journal January 2016
Excitons in boron nitride single layer journal September 2016
Excitons in van der Waals materials: From monolayer to bulk hexagonal boron nitride journal January 2017
Theory of phonon-assisted luminescence in solids: Application to hexagonal boron nitride journal February 2019
Giant exciton-phonon coupling and zero-point renormalization in hexagonal monolayer boron nitride journal April 2019
Direct Determination of Band-Gap Renormalization in the Photoexcited Monolayer MoS 2 journal June 2019
Huge Excitonic Effects in Layered Hexagonal Boron Nitride journal January 2006
The electronic properties of graphene journal January 2009
Colloquium : Excitons in atomically thin transition metal dichalcogenides journal April 2018
Oxide Interfaces--An Opportunity for Electronics journal March 2010
Evidence for a fractional fractal quantum Hall effect in graphene superlattices journal December 2015
Wafer-scale single-crystal hexagonal boron nitride film via self-collimated grain formation journal November 2018
Excitons in hexagonal boron nitride single-layer: a new platform for polaritonics in the ultraviolet journal January 2019
Effect of growth temperature on the structural and optical properties of few-layer hexagonal boron nitride by molecular beam epitaxy journal January 2018
Low dislocation density AlN on sapphire prepared by double sputtering and annealing journal August 2020