MERI Weekly Seminar - Materials by design: van der Waals heterostructures
Topic: Materials by design: van der Waals heterostructures
Presenter: Dr Artem Mishchenko

Dr Mishchenko will provide a fresh overview on recent developments in the technology of van der Waals heterostructures. The concept of heterostructures based on atom- or molecule-thick crystals has already led to a demonstration of vertical tunnelling transistors and diodes with negative differential conductance, high-quality field-effect transistors, photovoltaic devices, and even a nanometre-thick light-emitting diodes. 

The range of possible materials which could be incorporated into such stacks is very large since there are many layered materials where layers are linked by weak van der Waals forces, which can be exfoliated and combined together to create novel highly-tailored heterostructures. The range of functionalities for the demonstrated heterostructures is expected to grow further on increasing the number of available 2D crystals and improving their electronic quality. Hopefully, the rapid progress in the technology of chemical vapour deposition will also allow scaling up of production of such heterostructures.