Affiliation: | 1. Department of Physics, Ewha Womans University, Seoul 120-750, Republic of Korea;2. Department of Chemistry and Nanosciences, Ewha Womans University, Seoul 120-750, Republic of Korea;1. Solarion AG, Ostende 5, DE-04288, Leipzig, Germany;2. Scientific-Practical Material Research Centre of the National Academy of Science of Belarus, 220072, Minsk, P.Brovki 19, Belarus;3. Department of Physics, Strathclyde University, Glasgow, G4 0NG, UK |