1. Department of Materials; Textiles and Chemical Engineering (MaTCh); Faculty of Engineering and Architecture; Ghent University; Technologiepark 907 9052 Ghent Belgium
2. Sol-Gel Centre for Research on Inorganic Powders and Thin Films Synthesis (SCRiPTS); Department of Chemistry; Faculty of Sciences; Ghent University; Krijgslaan 281 S3 9000 Ghent Belgium