Aarhus University Seal

Distinguished iNANO Lecture: Chemical bonding in layered thermoelectric materials

Professor Bo Brummerstedt Iversen, Department of Chemistry & iNANO, Aarhus University

Info about event

Time

Friday 28 September 2018,  at 10:15 - 11:00

Location

iNANO AUD (1593-012), Gustav Wieds Vej 14, 8000 Aarhus C

 

Professor Bo Brummerstedt Iversen, Center for Materials Crystallography, Department of Chemistry & iNANO, Aarhus University

Chemical bonding in layered thermoelectric materials

Layered (2D) materials exhibit a variety of extraordinary properties, and recent focus has included topological insulators, electrode materials, monolayers, hetero structures – and thermoelectrics. The physical properties such as band gap or thermal and electrical conductivity are related to the detailed structural characteristics as well as the specific chemical bonding both within the covalent layers and across the van der Waal gap. It is generally assumed that layered materials exhibit strongly anisotropic properties, but the properties are rarely discussed in direct relation to the specific chemical bonding characteristics of the solid.

Using advanced crystallographic analysis including charge density modelling as well as ab initio theoretical calculations we have studied the crystal structures and chemical bonding of a range of important layered thermoelectric materials including Cu2Se, Mg3Sb2, SnS2 and TiS2.

Host: Professor Duncan Sutherland, iNANO & Dept. of Physics and Astronomy, Aarhus University

This Friday coffee, tea, and bread will be served from 09:30 in the foyer.