Controlled Synthesis and Scanning Tunneling Microscopy Study of Graphene and Graphene-Based Heterostructures

Description

This thesis focuses on the energy band engineering of graphene. It presents pioneering findings on the controlled growth of graphene and graphene-based heterostructures, as well as scanning tunneling microscopy/scanning tunneling spectroscopy (STM/STS) studies on their electronic structures. The thesis primarily investigates two classes of graphene-based systems: (i) twisted bilayer graphene, which was synthesized on Rh substrates and manifests van Hove singularities near Fermi Level, and (ii) in-plane h-BN-G heterostructures, which were controllably synthesized in an ultrahigh vacuum chamber and demonstrate intriguing electronic properties on the interface. In short, the thesis offers revealing insights into the energy band engineering of graphene-based nanomaterials, which will greatly facilitate future graphene applications. Front Matter ....Pages i-xvii Introduction (Mengxi Liu)....Pages 1-18 Controllable Synthesis of Graphene on Rh (Mengxi Liu)....Pages 19-35 STM Study of Twisted Bilayer Graphene (Mengxi Liu)....Pages 37-54 Controlled Synthesis of in-Plane h-BN-G Heterostructures (Mengxi Liu)....Pages 55-76 Atomic and Electronic Structures of h-BN-G Interfaces (Mengxi Liu)....Pages 77-89 Summary (Mengxi Liu)....Pages 91-92 Back Matter ....Pages 93-93