Electropolymerization of heteroarylene azomethines

• FRANCISCO BROVELLI ^[1] ; BERNABÉ L. RIVAS ^[1] ; JEAN CHRISTIAN BERNÈDE ^[2]
  1. [1] Universidad de Concepción

     Universidad de Concepción

     Comuna de Concepción, Chile

     
  2. [2] University of Nantes

     University of Nantes

     Arrondissement de Nantes, Francia

     
• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 50, Nº. 3, 2005, págs. 597-602
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen

  • Organic diodes were obtained using a thiophene and furan azomethines derivative polymer electrochemically synthesized in nonaqueous media. The polymers were deposited on indium tin oxide (ITO) coated glass substrates. The films obtained were physicochemically characterized by electron probe microanalysis and X-ray photoelectron spectroscopy. The current­voltage (I­V) characteristics exhibit a turn-on voltage at about 2.5-3.5 V depending on the heterocycle nature. The electroluminescence­voltage (EL­V) curve has a similar shape but a shift of 1-2 V toward higher voltage. The charge injection mechanism is related with Fowler-Nordheim tunneling effect