6533b82dfe1ef96bd1291517

RESEARCH PRODUCT

Improving the efficiency of light-emitting diode based on a thiophene polymer containing a cyano group

Ramon AlcubillaLeonardo SettiHenk J. BolinkS. CheylanCristobal VozAlessandro Fraleoni-morgeraJoaquim PuigdollersGonçal BadenesI. Mencarelli

subject

POLY{[3-HETHYLTHIOPHENE]-CO-3-[2-(P-CYANO-PHENOXY)ETHYL]THIOPHENE}Materials sciencePolymersCyano groupSubstituent:Enginyeria dels materials::Materials plàstics i polímers [Àrees temàtiques de la UPC]ElectroluminescenceOrganic light-emitting diodeslaw.inventionBiomaterialschemistry.chemical_compoundlawThiopheneMaterials ChemistryOLEDSide chainThiopheneELECTROLUMINESCENCEElectrical and Electronic EngineeringPolymerDiodechemistry.chemical_classificationbusiness.industryGeneral ChemistryPolymerLuminance efficiencyCondensed Matter PhysicsOrganic light-emitting diodes; Polymer; Thiophene; Cyano group; Luminance efficiencyElectronic Optical and Magnetic MaterialsPolímersOLEDchemistryOptoelectronicsPhysical chemistryOrganic light-emitting diodebusinessLight-emitting diode

description

Abstract We report on the overall improvement of a single layer organic light-emitting diode device based on poly{[3-hethylthiophene]-co-3-[2-( p -cyano-phenoxy)ethyl]thiophene} or namely PTOPhCN. This polymer was recently developed by adding a cyano group as a side-chain substituent of the thiophenic backbone onto the main polymer chain and showed promising results for light-emitting diode devices. Using an improved device layout, bright red electroluminescence was obtained at 4 V and showed a luminance of about 400 cd/m 2 at 8 V with current densities in the order of 6000 A/m 2 .

yearjournalcountryeditionlanguage
2007-12-01
10.1016/j.orgel.2007.04.009https://hdl.handle.net/2117/118019