1. Laboratory of Inorganic Chemistry, Department of Chemistry; University of Helsinki; P.O. Box 55 FI-00014 Helsinki (Finland)
2. Institute for Solid State Electronics; Vienna University of Technology; A-1040 Vienna (Austria)
3. Department of Applied Physics; Technische Universiteit Eindhoven; P.O. Box 513 5600 MB Eindhoven (The Netherlands)
4. École nationale supérieure des arts et industries textiles; 9 rue de l'ermitage BP 30329 Roubaix (France)
5. Air Liquide Korea; 11F Bojun Bldg., 70-13, Nonhyun-Dong, Gangnam-gu Seoul 135-530 (Korea)