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Electron-Beam Manipulation of Silicon Dopants in Graphene
Mukesh Tripathi, Andreas Mittelberger, Nicholas A. Pike +5
The direct manipulation of individual atoms in materials using scanning probe microscopy has been a seminal achievement of nanotechnology. Recent advances in imaging resolution and…
Structure and Electronic States of a Graphene Double Vacancy with an Embedded Si Dopant
Reed Nieman, Adélia J. A. Aquino, Trevor P. Hardcastle +3
Silicon represents a common intrinsic impurity in graphene, commonly bonding to either three or four carbon neighbors respectively in a single or double carbon vacancy. We investig…
Towards atomically precise manipulation of 2D nanostructures in the electron microscope
Toma Susi, Demie Kepaptsoglou, Yung-Chang Lin +4
Despite decades of research, the ultimate goal of nanotechnology--top-down manipulation of individual atoms--has been directly achieved with only one technique: scanning probe micr…
Buckyball sandwiches
Rasim Mirzayev, Kimmo Mustonen, Mohammad R. A. Monazam +6
Two-dimensional (2D) materials have considerably expanded the field of materials science in the last decade. Even more recently, various 2D materials have been assembled into verti…
Cleaning graphene: comparing heat treatments in air and in vacuum
Mukesh Tripathi, Andreas Mittelberger, Kimmo Mustonen +4
Surface impurities and contamination often seriously degrade the properties of two-dimensional materials such as graphene. To remove contamination, thermal annealing is commonly us…
Structure and energetics of embedded Si patterns in graphene
Daryoush Nosraty-Alamdary, Jani Kotakoski, Toma Susi
Recent experiments have revealed the possibility of precise electron beam manipulation of silicon impurities in graphene. Motivated by these findings and studies on metal surface q…