Subsequent projects

Dr. Ursula Wurstbauer
Technical University of Munich
Walter Schottky Institut - Holleitner Group


Dr. Joel Ager
Lawrence Berkeley National Laboratory
Joint Center for Artificial Photosynthesis

2D Layered Nanosystems for Solar Hydrogen Production

In this project, we would like to follow the path towards the design of an on-chip electrochemical cell for efficient solar hydrogen production in nanoscopic photochemical devices made out of 2D materials and their heterostructures.

We therefore develop a universal platform for the electrochemical and photochemical characterisation of nanostructured 2D materials such as MoS2 in various electrolytes with high sensitivity and high lateral resolution with respect to the edge sites vs basal planes of the 2D materials. The cell design facilitates photo-catalytic investigations with the possibility to in-situ monitor the change in the optical response by photoluminescence and Raman measurements that provide insights to modified charge carrier density by molecular doping, formation of lattice defects, and impact of different electrolytes on the excitonic properties.

Precisely tailored nano-holes and -ribbons with a high edge to bulk ratio will be produced by milling with a helium ion beam facilitating sub-10 nm structure size to quantitatively study the catalytic activity of bulk, edge and defects sites. The photo-activity will be enhanced by introducing van der Waals heterostructures.

 

Primary project: 2D Layered nanosystems for Solar Hydrogen Production


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