Formation and properties of opto-magnetic hybrid materials via the influence of external stimuli

• Applicants: Professor Dr. Karl Sebastian Mandel; Professor Dr. Klaus Müller-Buschbaum
• Subject Area: Solid State and Surface Chemistry, Material Synthesis
• Term: from 2014 to 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 252712950

Composite systems can allow for combinations of properties that cannot or hardly be found for homogenous compounds. For this purpose, the project is supposed to combine coordination polymers or MOFs with nano to microscale particle systems for the synthesis of composite systems. Therefore, it will be expanded to a joint project of two applicants of the respective expertise. The aimed-at composites shall exhibit simultaneous optical and magnetic properties, e.g. by combination of luminescence with superparamagnetism. In order to achieve this, different external stimuli will be investigated to contact the components, which –in addition to mechanochemistry of the first funding period- will also contain other mechano-related influences, such as spray drying or sonochemistry. Common preliminary work shows that highly interesting to surprising properties can result from the combination of luminescent MOFs and magnetic particles. Especially mechanochemistry seems to have an enormous potential for the combination of both material classes. The influence of different components, synthesis parameters as well as the resulting structure and architecture of the new hybrids will be investigated, and the physical properties determined. In addition, the project will attempt to develop controlled influencing of the core-shell architecture and thereby the sequence of core/shell vs. shell/core depending on variation of MOFs, particle systems, nanoparticle types and supraparticle architectures as well as the synthesis conditions. Altogether, the results of the first funding period will thereby be consequently utilized and further developed in order to get an overview on the formation of such composites, as the latter are both highly interesting for fundamental research as well as for applications, e.g. for in sensing.

• DFG Programme: Research Grants