IMFUFA-seminar: Electronic properties of two-dimensional materials

Mød professor Kristian Sommer Thygesen fra DTU, der fortæller om elektroniske egenskaber af todimensionale materialer.
Onsdag
21
november
Start:kl. 13.00
Slut:kl. 15.00
Sted: Roskilde Universitet, bygning 27.1, Lokale 1

Atomically thin two-dimensional (2D) materials have created a revolution in materials science. The family of 2D materials, which started with graphene, has expanded rapidly over the past few years and now includes insulators, semiconductors, semi-metals, metals, and superconductors.

This development has prompted an explosion in envisioned applications ranging from battery electrodes and catalysis to photovoltaics and electronics. At the same time, 2D materials research has been perhaps the most important breeding ground for new concepts and phenomena in condensed matter physics this decade. This is not least due to the distinctive nature of the electronic excitations in atomically thin crystals.

In this talk, I will describe different physical models for describing, understanding, and predicting the most important types of electronic excitations in 2D materials and show how they govern many of the material’s opto-electronic properties. Alongside the 2D materials, computational methods for describing van der Waals hetero-structures, which represent artificial “designer materials” obtained by stacking layers of different 2D materials, will also be discussed. 

Seminaret foregår på engelsk.

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