1. Physical
Chemistry and Center for Advancing Electronics Dresden, TU Dresden, Bergstr. 66b, 01062 Dresden, Germany
2. Electrical
and Computer Engineering, Institute of Semiconductors and Microsystems, Nöthnitzer
Straße 64, 01187 Dresden, Germany
3. Institute
for Complex Materials, IFW Dresden, Helmholtzstraße 20, 01069 Dresden, Germany
4. Semiconductor
Physics, Technische Universität Chemnitz, D-09107 Chemnitz, Germany
5. Department
of Physics, Department of Electrical and Electronics Engineering,
UNAM—Institute of Materials Science and Nanotechnology, Bilkent University, TR-06800, Ankara, Turkey
6. Luminous!
Center of Excellence for Semiconductor Lighting and Displays, School
of Electrical and Electronic Engineering, School of Physical and Mathematical
Sciences, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore