Research Overview

Research in the group 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. Properties of recent interest are the thermodynamics of phase transitions for the barocaloric application, the impact of defects on semiconducting properties in hybrid organic-inorganic perovskites and the creation of ion transport pathways as needed in solid state electrolytes. 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.

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 fascinating materials and concepts. We combine this knowledge with our fascination for the exciting unknown, continuously questioning existing thinking-patterns in the search of new concepts 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.