Dr. Michal Andrzejewski

Michal Andrzejewski

Postdoc Materials Science Group

Paul Scherrer Institute
Forschungsstrasse 111
5232 Villigen PSI
Suisse

Michal Andrzejewski studied chemistry at the Adam Mickiewicz University in Poznan, where he also defended his PhD thesis titled: 'High-pressure structural transformations of coordination polymers'. In 2017, he move to the Univeristy in Bern, where he continued studies of materials under extreme conditions and additionally was a service crystallographer. In 2021, he started a PostDoc position at the Materials Science beamline of the SLS and simultaneously a position at the ANAXAM, the Technology Transfer Centre for Advanced Manufacturing.

Michal Andrzejewski as a part of the Materials Science beamline team is responsible for the maintenance and development of the beamline as well as for the support of external users. In ANAXAM his tasks are related to Xray diffraction service for industrial customers.

Michal Andrzejewski's scientific interests focus on materials properties (optical, mechanical, electro-magnetic) induced or tuned by applied external pressure. In the second approach to study materials he uses in situ crystallization (up several GPa), often revealing new phases of compounds, unavailable by a standard compression. Apart from structural Xray diffraction techniques (on single crystalline of powder samples) he investigates materials under HP using Raman, IR and UVVis spectroscopies as well as performing conductivity studies (4 probes method).

Different Metallophilic Attitudes Revealed by Compression, S. Racioppi, M. Andrzejewski, V. Colombo, A. Sironi, P. Macchi, Inorg. Chem. 59, 4, 2223-2227, (2020)

Reversible pressure pre-amorphization of a piezochromic metal-organic framework, M. Andrzejewski, N. Casati, A. Katrusiak, Dalton Trans. 46, 14795-14803, (2017).

Piezochromic topology switch in a coordination polymer, M. Andrzejewski, A. Katrusiak, J. Phys. Chem. Lett. 8, 929-935, (2017).

Piezochromic porous metal-organic framework, M. Andrzejewski, A. Katrusiak,J. Phys. Chem. Lett. 8, 279-284, (2017).