caa a22 4500 463211391 CHVBK 20180405153142.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s00339-007-4049-y doi (NATIONALLICENCE)springer-10.1007/s00339-007-4049-y UV laser desorption of nitric oxide from semiconducting C60/Cu(111) [Elektronische Daten] [T. Hoger, D. Grimmer, H. Zacharias] The desorption of NO from a well-characterized, epitaxially grown semiconducting C60 surface is reported. Two different channels are identified in the laser desorption. Both channels yield a comparably high desorption cross section of σ1=7.0×10-17cm2 and σ2=5.5×10-17cm2 for the first and second channel, respectively. The laser desorbed NO molecules are detected with rovibrational state selectivity by (1+1) REMPI in the $A^2\Sigma^+ \to{X}^2 \Pi\,\gamma$ -bands. In the first channel the desorbing molecules are highly excited with an average kinetic energy of 〈Ekin〉=174meV. The rotational population distribution can be fitted by a rotational temperature of Trot=800K. A rotational-translational coupling is observed, with velocities ranging from 1000m/s for low to 1300m/s for high rotational states. The vibrationally excited population is estimated to be less than 1% of the ground state. The second channel yields less excited molecules and an almost Boltzmann distributed rotational population with a temperature of Trot=280K. The apparent velocity distribution derived from the pump-probe delay yields molecules much too slow to be explained by even a thermal desorption. This desorption is probably caused by a long-lived electronic excitation in the substrate for which a lifetime of τ≈160μs is estimated. Springer-Verlag, 2007 Hoger T. Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm Straße 10, 48149, Münster, Germany aut Grimmer D. Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm Straße 10, 48149, Münster, Germany aut Zacharias H. Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm Straße 10, 48149, Münster, Germany aut Applied Physics A Springer-Verlag 88/3(2007-08-01), 449-458 0947-8396 88:3<449 2007 88 339 https://doi.org/10.1007/s00339-007-4049-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00339-007-4049-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hoger T. Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm Straße 10, 48149, Münster, Germany aut NATIONALLICENCE 700 1- Grimmer D. Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm Straße 10, 48149, Münster, Germany aut NATIONALLICENCE 700 1- Zacharias H. Physikalisches Institut, Westfälische Wilhelms-Universität, Wilhelm-Klemm Straße 10, 48149, Münster, Germany aut NATIONALLICENCE 773 0- Applied Physics A Springer-Verlag 88/3(2007-08-01), 449-458 0947-8396 88:3<449 2007 88 339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer