Structural studies of functional organized molecular thin films using angle-resolved X-ray photoelectron spectroscopy

Based on photoelectron forwarding-scattering analysis, we present a new method using angle-resolved XPS to investigate the molecular packing structure of Langmuir–Blodgett LB.films and self-assembled monolayers SAMs.. It was found that the average tilt angle with surface normal of a bis 4-diethyannodithiobenzil.nickel BDN. molecule is about 408 for the BDN-SA stearyl alcohol.LB films, which is in agreement with the results of FTIR. The thickness and orientation of the molecular for 12-alkyl thiols SAMs on gold substrate were also estimated by using ARXPS. Estimated tilt angle with surface normal for 12-alkyl thiols molecule is about 308, which was confirmed by other literature results. q1999 Elsevier Science B.V. All rights reserved.