Instruction for speakers

As stated in Overview page, this workshop aims at identifying common research themes in Europe and Japan, in selected domains of research on 2D materials. The following list includes examples of questions that we would like to be at the focus of the presentations and the discussion of this workshop. Our idea is to pose a list of broad questions for each one of the three themes (Chemistry & Materials, Physics, Device applications) and ask the speakers to look how their research can address some of these questions, so that each speaker can try to focus his/her own presentation in direction that are of interest to all the participants.

1) Can we use –and if so how- interfacial interactions in heterostructures to engineer the electronic properties of 2D materials?

2) What is needed to characterize the physical properties of van der Waals interfaces? What are the most important aspects that we need to investigate experimentally?

3) How can we find new 2D materials that have interesting physical properties, potentially relevant for technology?

4) What are the key physical concepts that we need to consider to understand broadly the electronic properties of electrons in two incommensurate lattices forming a van der Waals heterostructure?

5) What are the key interactions that play a role in van der Walls interactions? charge transfer, electron-phonon, etc.

6) What are the most pressing challenges to develop the CVD growth of graphene and other 2D materials?

7) Do we understand the nature of electrical contacts to devices based on 2D materials and their heterointerfaces?

8) Are contacts limiting –and if so in which way- the performance of applied devices that are currently being investigated? (e.g., for sensors, opto-electronic devices, photovoltaic cells…)

9) What are the electronic device applications that have a chance to be commercialized first based on graphene or other 2D materials?

10) Are there inherent advantages in 2D materials for applications as compared to traditional thicker electronic materials? Examples?

11) What are key aspects of “conventional” semiconductor physics that needs to be modified when considering 2D semiconducting materials?

12) How can we use bottom-up technique in fabricating 2D materials? Polymer science, organic chemistry and bioscience can give important contributions.

13) What kinds of functionality can be built in in 2D materials?

14) How important is nanofabrication such as nanoribons, nanowires, antidots in giving functionalities?

15) What are the benefits in graphene-based van der Walls 2D materials compared to existing III-V, II-VI, and/or group-IV heterostructures?

16) How to cope with low carrier transport properties in TMDCs (compared to other semiconductors like InGaAs, Si, GaAs, etc.) in van der Walls 2D heterostructure materials?

17) Which frequency range in electromagnetic spectrum would be most challenging and exciting from the viewpoint of science, technology, engineering, and industry?