More informations on the jount undertaking of the Inorganic and Materials Chemistry Division of the University of Cologne with the Helmholz Zentrum Berlin (HZB), the MPI for then Science of Light and the Innovations-Institut für Nanotechnologie und korrelative Mikroskopie (INAM e.V.) on materials research for photonic applications can be fond here: http://hzb.uni-koeln.de

Transmission Electron Microscopy User Group of the University of Cologne: http://tem.uni-koeln.de