ELECTRICAL-CONDUCTIVITY OF POLY(2-ETHYNYLTHIOPHENE) AND POLY(2-ETHYNYLFURAN) DOPED WITH ELECTRON-ACCEPTORS

Abstract

The electrical conductivity of poly(2-ethynylthiophene) (P2ET) and poly(2-ethynylfuran) (P2EF) doped with electron acceptors such as iodine, bromine, and ferric chloride was investigated. The maximum electrical conductivities of P2ET and P2EF doped with iodine were 3 x 10(-4) OMEGA-(-1) cm-1 and 5 x 10(-3) OMEGA-(-1) cm-1, respectively. The electrical conductivity was nearly independent with increasing molecular weight. The spectral measurements such as UV-visible, infrared, electron paramagnetic resonance, thermogravimetric analysis, and X-ray diffraction were also carried out.