"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Optical and structural properties of polythiophene-like films deposited by plasma polymerization

A. C. GALCA1,2, V. SATULU2, M. D. IONITA2, M. BERCU3, E. BARNA3, M. DUMITRU2, B. MITU2, G. DINESCU2,*

Affiliation

  1. National Institute for Materials Physics, PO Box MG- 7, 077125 Măgurele, Romania
  2. National Institute for Laser, Plasma and Radiation Physics, Atomistilor 409, PO Box MG- 16, 077125 Măgurele, Romania
  3. Faculty of Physics, University of Bucharest, PO Box MG- +11, 077125 Măgurele, Romania

Abstract

Polymer-like organic thin films obtained by plasma techniques are of wide interest for various applications. Polythiophenelike thin films were deposited by plasma polymerization in a parallel plate radiofrequency reactor starting from thiophene vapors. The optical properties of the films were obtained from spectroscopic ellipsometry, in the 250-1250 nm range. The calculated band gap is in agreement with a polythiophene-like material consisting of cross-linking of oligomers. The presence of functional groups and film stability against oxidation is analyzed by FTIR spectrometry. The monitoring of functional groups incorporation during the film deposition was done by analyzing the integral intensities of specific absorption bands and led to the conclusion that homogeneous films are obtained whatever the process duration..

Keywords

Polythiophene, Plasma polymerization, Spectroscopic ellipsometry.

Submitted at: March 1, 2008
Accepted at: July 10, 2008

Citation

A. C. GALCA, V. SATULU, M. D. IONITA, M. BERCU, E. BARNA, M. DUMITRU, B. MITU, G. DINESCU, Optical and structural properties of polythiophene-like films deposited by plasma polymerization, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 8, pp. 2033-2037 (2008)