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Photoemission and C 1s near-edge absorption from photopolymerized C60 films

✍ Scribed by B.S. Itchkawitz; J.P. Long; T. Schedel-Niedrig; M.N. Kabler; A.M. Bradshaw; R. Schlögl; W.R. Hunter

Book ID
103035509
Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
445 KB
Volume
243
Category
Article
ISSN
0009-2614

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✦ Synopsis

Valence band and C ls X-ray photoemission and near-edge absorption spectroscopy have been used to characterize C6O photopolymerization induced by pulsed laser irradiation of 2.43 eV photons. Photoemission spectroscopy at various photon energies detected the reduced amplitude and broadening of the HOMO and HOMO -1 bands upon polymerization, and the appearance of two additional photoinduced features. In the C ls NEXAFS, the unoccupied bands of C6o were broadened upon photopolymerization with a small shift (= 0.1 eV) toward higher energy. The dependence of the photopolymerization rate on the incident laser intensity was sublinear for instantaneous laser intensities 70-800 kW/cm 2.

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