The presence of defects in graphene has an essential influence on its physical and chemical
properties. The formation, behaviour and healing of defects are determined by energetic …

We present an overview of the electrical, mechanical, and thermal properties of
polycrystalline graphene. Most global properties of this material, such as the charge mobility …

We present the first experimental evidence of a topological phase transition in a
monoelemental quantum spin Hall insulator. Particularly, we show that low-buckled epitaxial …

We study the atomic scale microstructure of nonstoichiometric two-dimensional (2D)
transition metal dichalcogenide MoSe2–x by employing aberration-corrected high-resolution …

We have characterized the structure of 176 different single-layer graphene grain boundaries
grown with chemical vapor deposition using> 1000 experimental high-resolution …

A plethora of two-dimensional (2D) materials have been introduced in physics and
engineering in the past two decades. Their robust, membranelike sheets permit (mostly …

We present a theoretical study of electronic and thermal transport in polycrystalline
heterostructures combining graphene (G) and hexagonal boron nitride (hBN) grains of …

Many potential applications of graphene require either the possibility of tuning its electronic
structure or the addition of reactive sites on its chemically inert basal plane. Among the …

The effects of corrugated grain boundaries on the frictional properties of extended planar
graphitic contacts incorporating a polycrystalline surface are investigated via molecular …

Graphene has shown excellent tribological behaviors, enabling its potential applications as
lubricating and anti-wear coatings, however, the grain boundaries (GBs) formed during the …