Volume 83, Number 5, September 2008
|Number of page(s)||5|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||20 August 2008|
Origin of the anomalous X-ray diffraction in phthalocyanine films
Department of Physics, University of California - San Diego, La Jolla, CA 92093, USA
2 Department of Physics and Astronomy, California State University - Long Beach, CA 90840, USA
Corresponding author: firstname.lastname@example.org
Accepted: 10 July 2008
The impact of the submolecular electron density on the X-ray diffraction profile of a layer-stacked thin film is studied experimentally and compared with numerical simulations based on the molecular structure and angular arrangement. Important structural information is contained in the X-ray diffraction profile of highly anisotropic molecular thin films, such as phthalocyanines. The results show that the intensity distribution of the diffraction peaks belonging to the same series of lattice planes provides important structural information including the molecular tilt angle and the center electron density of the molecule.
PACS: 68.55.-a – Thin film structure and morphology / 68.37.-d – Microscopy of surfaces, interfaces, and thin films / 68.35.bm – Solid surfaces and solid-solid interfaces: Structure and energetics: Polymers, organics
© EPLA, 2008
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