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Doping type effect on electrical conductivity of Poly(2,6 dimethyl-1,4-phenylene oxide) and electrical properties of doped and undoped Poly(2,6-dimethyl-1,4-phenylene oxide) / Ardel®D-100 films

M. SERIN1,* , D. SAKAR1, O. CANKURTARAN1, F. KARAMAN1

Affiliation

  1. Yildiz Technical University, Davutpasa Campus, 34220, Esenler, Istanbul, Turkey

Abstract

The electrical conductivity of the polymer was measured in Al/polymer/Al structure over the temperature range of 300 – 510K. The measurements were carried out under vacuum of 10-5 Torr and dark. The activation energies of the samples were determined. It was found that dopants such as tetra-n-butylammonium tetrafluoroborate, tetraethylammonium bromide, and tetra-n-butylammonium bromide do not increase the conductivity of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) films prepared by cast method from chloroform solution with thickness of 6.0µm and at a rate of 0.50 mol doped / mol PPO. Then, the electrical properties of undoped poly(2,6-dimethyl-1,4-phenylene oxide) / Ardel®D-100 (PPO/ARDEL) film has been studied. The glass transition temperatures of the samples were determined by conductivity measurements. It was performed on PPO/ARDEL samples doped by tetra-n-butylammonium tetrafluoroborate in chloroform solution at the rates such as 0.25 mol doped/mol (PPO/ARDEL), 0.50 mol doped / mol (PPO/ARDEL) and 0.75 mol doped / mol (PPO/ARDEL). The conductivities of PPO /ARDEL blends are increasing as much as four orders of magnitude by increasing doping concentration..

Keywords

Poly (2,6-dimethyl-1,4-phenyleneoxide), Electrical characterization, Dark conductivity, Doping type, Doping ratio.

Submitted at: March 24, 2006
Accepted at: May 18, 2006

Citation

M. SERIN, D. SAKAR, O. CANKURTARAN, F. KARAMAN, Doping type effect on electrical conductivity of Poly(2,6 dimethyl-1,4-phenylene oxide) and electrical properties of doped and undoped Poly(2,6-dimethyl-1,4-phenylene oxide) / Ardel®D-100 films, Journal of Optoelectronics and Advanced Materials Vol. 8, Iss. 3, pp. 1308-1311 (2006)