In the search for new semiconducting materials the group of transition metal dichalcogenides (TMDCs) have seen an increasing interest due to their unique electronical and structural properties. The layered lattice structure of crystalline TMDCs allows the preparation of structures from bulk to monolayer yielding two-dimensional semiconductors. In my project I am focusing on the tunability of the electronic structure of various TMDCs like molybdenum disulfide (MoS₂), molybdenum ditelluride (MoTe₂) and tungsten diselenide (WSe₂) by using methods of exfoliation to alter the number of layers, chemical doping by ion sputtering and heterostructuring with semiconducting organic molecules yielding coupled organic-inorganic nanostructures (COINs).

To investigate the properties of given heterostructures, different analytical experiments such as X-ray photoelectron spectroscopy (XPS), X-ray absorption spectroscopy (XAS) and confocal Raman microscopy are performed.

In my work, I want to achieve a deeper understanding about the possibilities of tuning the electronic properties of given structures to create suitable materials for the application in semiconducting devices such as field-effect transistors (FETs) and other optoelectronic elements.