title: In-situ epitaxial growth of graphene/h-BN van der Waals heterostructures by molecular beam epitaxy.
abstract: Van der Waals materials have received a great deal of attention for their exceptional layered structures and exotic properties, which can open up various device applications in nanoelectronics. However, in situ epitaxial growth of dissimilar van der Waals materials remains challenging. Here we demonstrate a solution for fabricating van der Waals heterostructures. Graphene/hexagonal boron nitride (h-BN) heterostructures were synthesized on cobalt substrates by using molecular beam epitaxy. Various characterizations were carried out to evaluate the heterostructures. Wafer-scale heterostructures consisting of single-layer/bilayer graphene and multilayer h-BN were achieved. The mismatch angle between graphene and h-BN is below 1°.
authors.affiliation: Quantum Structures Laboratory, Department of Electrical and Computer Engineering, University of California, Riverside, California 92521, USA.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Zuo
authors.affiliation: Quantum Structures Laboratory, Department of Electrical and Computer Engineering, University of California, Riverside, California 92521, USA.
authors.forename: Zhongguang
authors.initials: Z
authors.lastname: Xu
authors.affiliation: Quantum Structures Laboratory, Department of Electrical and Computer Engineering, University of California, Riverside, California 92521, USA.
authors.forename: Renjing
authors.initials: R
authors.lastname: Zheng
authors.affiliation: Quantum Structures Laboratory, Department of Electrical and Computer Engineering, University of California, Riverside, California 92521, USA.
authors.forename: Alireza
authors.initials: A
authors.lastname: Khanaki
authors.affiliation: Irvine Materials Research Institute University of California Irvine, CA 92697-2800, USA.
authors.forename: Jian-Guo
authors.initials: JG
authors.lastname: Zheng
authors.affiliation: Quantum Structures Laboratory, Department of Electrical and Computer Engineering, University of California, Riverside, California 92521, USA.
authors.forename: Jianlin
authors.initials: J
authors.lastname: Liu