1. Advanced Microelectronic Center Aachen, AMO GmbH, Otto-Blumenthal-Str. 25, 52074 Aachen, Germany
2. Chair of Electronic Devices (ELD), RWTH Aachen University, Otto-Blumenthal-Str. 25, 52074 Aachen, Germany
3. Senseair AB, Stationsgatan 12, 824 08 Delsbo, Sweden
4. Department of Applied Physics, KTH Royal Institute of Technology, Stationsgatan 12, 114 19 Stockholm, Sweden
5. Division of Micro- and Nanosystems, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden
6. Institute of Physics, Faculty of Electrical Engineering and Information Technology (EIT 4) & SENS Research Centre, University of the Bundeswehr Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany