1. Inorganic Materials Chemistry; Faculty of Chemistry and Biochemistry; Ruhr-University Bochum; 44801 Bochum Germany
2. Nano and Energy Center; VNU University of Science; 334 Nguyen Trai Thank Xuan Hanoi Vietnam
3. Chair of Experimental Physics II; Ruhr-University Bochum; 44801 Bochum Germany
4. Dynamitron Tandem Laboratory of RUBION; Ruhr-University Bochum; 44801 Bochum Germany