Research Overview

Research in the group is driven by our fascination in various material properties and their subsequent control via a broad range of synthetic techniques. Current research focuses on dense and porous coordination polymers as material platform, coupling a basic research concept with our interest in applied materials science. By combining synthetic chemistry with efforts to understand the crystal chemistry and underlying thermodynamics, we aim to identify design principles that help us synthesising new materials with targeted physicochemical properties of scientific and technological relevance. On-going projects focus on the manipulation of phase transition thermodynamics for the barocaloric application, the creation of defects and the study of their impact on the semiconducting properties in photovoltaic perovskites, and the synthesis of coordination networks with ion transport pathways. Since structural changes play a crucial role in all our research activities, we constantly employ state-of-the art diffraction and scattering techniques such as high pressure and variable temperature X-ray diffraction and inelastic neutron scattering which is complemented by model calculations and large scale data processing tools.

   
 

Figure 1. Based on a fundamentally inspired basic research concept and expertise (colored), research outcomes touch areas of applied materials science such as barocalorics and photovoltacs (grey) that we pursue with our collaboration partners.

 

Our research philosophy is based on our believe that materials scientists already possess an arsenal of tantalising materials and concepts. We combine these with our fascination for the exciting unknown, continuously questioning existing thinking-patterns in the search of new concepts, new materials and unexpected material properties. This approach constantly brings us to the limits of traditional research disciplines and beyond – a challenge that we face with great enthusiasm.

Some overview publications:
  • A. K. Cheetham, G. Kieslich, H.-M. H. Yeung. Thermodynamic and Kinetic Effects in the Crystallization of Metal-Organic Frameworks. Acc. Chem. Res. 2018, 51, 659-667.
  • S. Burger, M. Ehrenreich, G. Kieslich. Tolerance Factors of hybrid perovskites: recent improvements and current state of research. J. Mater. Chem. A, 2018, 6, 21785-21793.
  • G. Kieslich, A. Goodwin. The same and not the same: Molecular perovskites and their solid-state analogues. Mater. Horiz. 2017, 4, 362-366.