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Novel approach to the study of electrical conduction in bromine-doped polyacetylene

par Kanicki, Jerzy ;Boué, Stéphane ;Vander Donckt, Emile
Référence Thin solid films, 92, 3, page (243-251)
Publication Publié, 1982-06

Article révisé par les pairs

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Résumé :

Using X-ray analysis we showed that on doping with iodine or bromine trans-polyacetylene loses its crystalline character. The optical and electrical properties of bromine-doped films (approximately 1000 Å thick) were investigated and the formation of charge transfer complexes was quantitatively correlated to the production of charge carriers and to the conductivity σ. Our results indicate that the most probable conduction mechanism which obtains at room temperature in halogen-doped polyacetylene is three-dimensional disordered hopping. The density of states N(EF), the hopping distance R and the carrier localized wavefunction α were estimated for this organic semiconductor. © 1982.