1. Laboratory of Materials and Interface Chemistry, Department of Chemical Engineering and Chemistry; Eindhoven University of Technology; De Zaale 5612AJ Eindhoven The Netherlands
2. VTT Technical Research Centre of Finland; Tietotie 3 02044 Espoo Finland
3. Holst Centre - TNO; High Tech Campus 31 5656AE Eindhoven The Netherlands
4. Nokia R&D, UK; 21 JJ Thomson Avenue, Madingley Road Cambridge CB3 0FA United Kingdom