1. Department of Physics; Nanoscience Center; University of Jyväskylä; Jyväskylä Finland
2. Physik Department; Walter Schottky Institute; Technische Universität München; Garching Germany
3. Biohybrid Materials, Department of Biotechnology and Chemical Technology; Aalto University; Aalto Espoo Finland
4. Molecular Materials, Department of Applied Physics; Aalto University; Aalto Espoo Finland