Organic light-emitting devices of thiophene vynilic derivatives

In this work, we present the results obtained for the polymerisation in non-aqueous media of thiophenes derivatives; [2-Tenal-acetotienone] and [1,5-bis(2-Tenal)-1,4-pentadien-3-one], via electrochemical deposition on indium (in oxide OTO) glass electrodes. The I-V curves and electroluminescent response was evaluated. It was studied that the film thickness affects the metal/polymer interface properties during the devices operation. The results indicate that diodes and electroluminescent response occurs at 2-3 V though anomalous device behaviour can be found when the reverse bias was applied. (C) 2001 Elsevier Science B.V. All rights reserved.