Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5422216 | Surface Science | 2014 | 5 Pages |
Abstract
Helium atom scattering and low-energy electron diffraction have been used for studying the adsorption of TCNQ molecules on Cu(100). By optimizing the TCNQ growth procedure through the analysis of He-diffraction spectra, a long range (over 2000Â Ã
), ordered molecular overlayer has been attained by TCNQ deposition at 110Â K followed by thermal annealing at 315Â K. By contrast, no He-diffraction spectra could be obtained by employing growth methods reported previously. Moreover, TCNQ molecules were found to form a single-domain incommensurate overlayer on Cu(100). The lattice parameters of this structure have been determined from an analysis of the measured high-resolution He-diffraction spectra.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Katrin Fladischer, Antonio Politano, Wolfgang E. Ernst, Daniel FarÃas, Rodolfo Miranda,