Nanoscale Phenomena in 2D Material Heterostructure

Dear Colleagues,

Since Geim and Novoselov discovered graphene, a new generation of materials have entered the world of nanoscience, generally known as two-dimensional materials (2DMs). They are characterized by unique physical properties with respect to the bulk in nature: diverse electrical behavior, from metals and semiconductors to insulators; peculiar nanomechanics and tribology; and, finally, extreme thermal conductivities. In the past few years, structures made of a single sheet or a few layers of 2DMs have been intensively investigated. Many physical properties have been successfully explored, although further investigations are paramount to advance in this new area.

Subsequently, scientists have started to build systems resulting from the combination of two or more 2DMs. Typically, such heterostructures consist of vertical stacks obtained via the successive superposition of single layers, often varying the orientation of adjacent layers or even integrating other molecules, with the intent of tuning their physical and chemical properties. However, the realization of these stacks is not trivial, and to investigate new phenomena and create new devices, it is equally important to realize such systems and characterize them at the nanoscale. In this issue, we will publish the latest achievements in terms of the design, characterization, and application of 2DM heterostructures.

Dr. Franco Dinelli
Guest Editor

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• 2D materials
• nanoscale
• heterostructures
• interfaces
• defects
• physical properties
• chemical properties
• microscopies
• spectroscopies
• devices