1. Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56−58, 114 28 Stockholm, Sweden
2. Treesearch, Teknikringen 38a, 114 28 Stockholm, Sweden
3. Laboratory for Water and Turbine Machines, Faculty of Mechanical Engineering, University of Ljubljana, Aškerčeva 6, 1000 Ljubljana, Slovenia
4. Department of Materials and Environmental Chemistry, Stockholm University, Svante Arrhenius väg 16 C, 114 18 Stockholm, Sweden
5. Laboratory of Organic Electronics, Linköping University, Campus Calla, Olaus Magnus väg 37, 583 30 Linköping, Sweden