1. Institute of Chemical Physics, and Institute of Atomic Physics and SpectroscopyUniversity of Latvia 19 Raina Boulevard LV 1586 Riga Latvia
2. NanoTechnas – Center of Nanotechnology and Materials ScienceFaculty of Chemistry and GeosciencesVilnius University Naugarduko 24 LT‐03225 Vilnius Lithuania
3. Department of ChemistryDurban University of Technology P.O Box 1334 Durban 4000 South Africa
4. Faculty of ChemistryUniversity of Latvia 19 Raina Boulevard LV 1586 Riga Latvia
5. Research Laboratory of Functional Materials TechnologiesFaculty of Materials Science and Applied ChemistryRiga Technical University P. Valdena 3/7 1048 Riga Latvia
6. Sumy State UniversityCenter for Collective Use of Scientific Equipment 31, Sanatornaya st. 40018 Sumy Ukraine