Ex-situ ellipsometric study of the nanolayers of dihydroantracene oligoperoxide adsorbed on glass surface

Abstract

In this work we study kinetics of adsorption process and structure of nanolayers formed by a new oligoperoxide with dihydroantracene units. It is shown that the structure of oligoperoxide nanolayer adsorbed on a glass surface depends on the concentration of polymer in aqueous solution and the duration of adsorption process. The adsorption isotherm curves reveal a complicated time dependences explained by changes occurring in the conformation of macromolecules on the solid surface. A stable equilibrium of the structure of adsorption nanolayers is reached in a few tens of minutes.

Method for determination of the parameters of transparent ultrathin films deposited on transparent substrates under conditions of low optical contrast

“…In this relation we are to notice that readily detectable changes of the ellipsometric parameters for a system of transparent film and substrate can appear even in the case of extremely low-contrast monomolecular layers deposited using controlled grafting [5,[24][25][26]. These changes in the optical response can be explained when taking into account the influence of inhomogeneous surface layers appearing at the substrate surfaces [27,28].…”

Validiation of Photometric Ellipsometry for Refractive Index and Thickness Measurements

“…However, the alignment of the typical ellipsometer is rather large in size and difficult to modify to comply with certain works. In this work, we design and set up a computer-interface ellipsometer that has relatively smaller size than that of commercial ones and can be easily modified for several specific works including surface analysis [12,13]. Such ellipsometer can also be incorporated into deposition systems so that the thickness of thin film may be monitored in real time during the deposition.…”