1. Centre for Innovation and Transfer of Natural Sciences and Engineering Knowledge; Faculty of Mathematics and Natural Sciences; University of Rzeszow; Rzeszow Poland
2. Department of Sensor and Semiconductor Electronics; Ivan Franko National University of Lviv; Lviv Ukraine
3. Laboratoire Verres et Céramiques; UMR-CNRS 6226; Université de Rennes 1; Rennes Cedex France