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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 18:10 |
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Conference: Bucharest University Faculty of Physics 2017 Meeting
Section: Polymer Physics
Title:
Characterization of thin polymer film deposited in DC plasma reactor
Authors:
Bogdan BUTOI(1,2), Alexandru CITA(1), Dumitru STAICU(1), Valentin BARNA(1)
*
Affiliation:
1)Faculty of Physics, University of Bucharest, Magurele, Romania
2)National Institute for Laser, Plasma and Radiation Physics, Magurele, Romania
E-mail
bogdan.butoi@g.unibuc.ro
Keywords:
thin polymer film, plasma reactor, Glancing Angle Deposition, FT-IR, SEM, AFM
Abstract:
This work is devoted to characterizing polyaniline thin films obtained in a DC plasma polymerization reactor with variable geometry. The reactor offers the possibility of deposition for polymer films in Glancing Angle Deposition conditions. When modifying various parameters such as the angle of the substrate in relation with the incident vapors and temperature, the resulting thin films present changes in chemical bonds, as seen in FT-IR spectra, and topological growth (observed in SEM and AFM images). Structural proprieties are also investigated using XRD, where 90 nm crystallites can be found in an amorphous layer, results supported also by the electrical conductivity measurements. These types of films can be used to enhance the electro-optical response in nematic liquid crystal cells.
Acknowledgement:
The research activities were supported from the RO PN-II-RU-TE-2014-2412 grant.
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