For SiC materials, our main collaboration is the group of Nguyen T. Son (Linköping, Sweden).
For our work with GaAs materials (MBE grown bulk n-GaAs and GaAs/AlGaAs quantum well structures) we collaborate with the group of Andreas Wieck in Bochum (Germany), and Dirk Reuter, who started a new group in Paderborn (Germany) (after a position in Bochum till 2012).
For theory support we have various collaborations.
For nanofabrication expertise and facilities we particpate in the Dutch National Nanoned and NanoLab NL initiatives.