Publication Title

Physical Review E

Publication Date

1-15-1995

Document Type

Article

DOI

10.1103/PhysRevE.51.526

Keywords

Langmuir Blodgett Films, Multilayer Films, Surface, Scattering, Growth

Disciplines

Physics

Abstract

We report results of x-ray reQectivity studies of thin conducting films, organic alignment layers, and liquid crystal films on Bat glass substrates. An understanding of these films is important for liquid crystal science and technology. Specular reflectivities of conducting layers of indium tin oxide, organic overlayers of lecithin, 12-8(poly)diacetylene polymerized with linearly polarized uv light, and spin-coated diheptylazoxy benzene films were measured. The evolution of surface roughness of soda-lime glass substrates as a function of chemical etching time was also studied. Using theoretical models based on the Fourier transform of electron density gradients and the matrix formalism of x-ray optics, we quantitatively determined film thickness, layer spacing, electron density, and rms surface roughness and height-height correlations.

Comments

Copyright 1995 American Physical Society. Available on publisher's site at http://dx.doi.org/10.1103/PhysRevE.51.526.


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