IUVSTA 15th International Vacuum Congress (IVC-15), AVS 48th International Symposium (AVS-48), 11th International Conference on Solid Surfaces (ICSS-11)
    Organic Films and Devices Wednesday Sessions
       Session OF+NS+SS+BI-WeM

Paper OF+NS+SS+BI-WeM9
Temperature-dependent Morphology of Crystalline p-sexiphenyl Thin Films on KCl(001)

Wednesday, October 31, 2001, 11:00 am, Room 131

Session: Self Assembled Monolayers/Ordered Films
Presenter: E.J. Kintzel, Jr., Florida State University
Authors: E.J. Kintzel, Jr., Florida State University
D.-M. Smilgies, Cornell University
J.G. Skofronick, Florida State University
S.A. Safron, Florida State University
Correspondent: Click to Email
Investigations of the morphology of ultrathin films of p-sexiphenyl (p-6P) vapor deposited onto KCl(001) have been carried out using the complementary techniques of X-Ray Diffraction (XRD) and Atomic Force Microscopy (AFM). XRD studies have shown that the molecular orientation of the p-6P is dependent on the substrate temperature during deposition. For films prepared at low temperatures, the p-6P molecules take a lying orientation, with the long axis of the molecule aligned parallel to the substrate. As the substrate temperature was increased during deposition, XRD results indicate two coexisting molecular orientations, corresponding to lying and standing p-6P molecules. AFM images provide independent confirming evidence of the influence of substrate temperature on molecular orientation, consistent with the XRD results.