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UV copper ion laser treatment of poly(3,4-ethylenedioxythiophene)

M. ILIEVA1, V. TSAKOVA1, N. K. VUCHKOV2,* , K. A. TEMELKOV2, N. V. SABOTINOV2

Affiliation

  1. Institute of Physical Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
  2. Institute of Solid State Physics, Bulgarian Academy of Sciences, 1784 Sofia, Bulgaria

Abstract

The influence of ultraviolet (UV) 248.6 nm Cu+ Ne-CuBr laser treatment on the chemical, electrochemical and morphological characteristics of electrodeposited conducting polymer poly(3,4-ethylenedioxytiophene) (PEDOT) layers, as well as on the PEDOT surface activity with respect to metal deposition, is studied. Irradiated and non-irradiated polymer samples are characterized by means of electrochemical measurements, SEM, XPS and EPR spectroscopy. It is found that the laser treatment does not influence the electrochemical activity, the morphology and the paramagnetic response of the PEDOT layers. XPS analysis shows that the laser treatment leads to a change in the relative amounts of the chemical elements (carbon, sulphur and oxygen) involved in PEDOT. Thus, the UV irradiation modifies the polymer surface and allows a significant activation of the process of copper deposition on PEDOT..

Keywords

PEDOT, Laser treatment, Conducting polymers.

Submitted at: Nov. 1, 2006
Accepted at: Feb. 15, 2007

Citation

M. ILIEVA, V. TSAKOVA, N. K. VUCHKOV, K. A. TEMELKOV, N. V. SABOTINOV, UV copper ion laser treatment of poly(3,4-ethylenedioxythiophene), Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 2, pp. 303-306 (2007)