Affiliation: | (1) Institute of Electronics BAS, 72 Tzarigradsko chaussee, 1784 Sofia, Bulgaria;(2) Institute of Electronics BAS, 72 Tzarigradsko chaussee, 1784 Sofia, Bulgaria;(3) Institut für Physikalische und Theoretische Chemie, Hans-Sommer Strasse 10, D-38106 Braunschweig, Germany;(4) Institute of Chemical Engineering and High Temperature Chemical Processes, P.O. Box 1414, GR-26500 Patras, Greece;(5) Lucent Technologies, 101 Crawfords Corner Road, Holmdel, New Jersey, 07733, U.S.A. |