1. Werkstoffe der Elektrotechnik and CENIDE, University of Duisburg-Essen, 47057 Duisburg, Germany
2. Compound Semiconductor Technology, RWTH Aachen University, 52074 Aachen, Germany
3. AIXTRON Ltd., Cambridge CB24 4FQ, U.K.
4. AIXTRON SE, 52134 Herzogenrath, Germany