Pentacene films on Cu(119)
The present study demonstrates that highly ordered pentacene films can be obtained on a Cu(119) vicinal surface both in a flat orientation for low coverages and in a bulk-like herringbone orientation for higher coverages.
E. Annese et al., Langmuir 26, 19142 (2010)
The molecular structure of thin pentacene film grown on a Cu(119) surface has been studied by Near Edge X-ray Absorption Fine Structure spectroscopy and scanning tunnelling microscopy. Pentacene molecules arrange with the main axis almost parallel with the Cu terraces according to the measured polarization dependence of the C 1s absorption spectra. For thickness exceeding 4 nm an upright arrangement of the molecules was observed with a dense herringbone-like ordering. The present study thus demonstrates that highly ordered pentacene films can be obtained on a Cu(119) vicinal surface both in a flat orientation for low coverages and in a bulk-like herringbone orientation for higher coverages. Langmuir 26, 19142 (2010) |