Acta Polymerica · 1999 · 191 citations · 0 references
Natural SciencesMaterials EngineeringMaterials ScienceElectronic MaterialsOptoelectronicsPolymer MaterialsConducting PolymersConductive PolymersLight-emitting DiodesLuminescent MaterialsOrganic SemiconductorsPolymer CharacterizationElectrochemical ReversibilityForward Bias CharacteristicsHole TransportLight-emitting DevicesLight-emitting MaterialsLuminescent PolymersThermal StabilityVoltammetry
A polymer (TPD-PPV), incorporating both efficient light-emitting and hole transporting moieties has been synthesized. This polymer also possesses excellent film-forming property, good thermal stability, and high electrochemical reversibility and stability. The HOMO-LUMO energy levels were determined by cyclic voltammetry and UV-Vis measurement. The diode with the structure of ITO/CuPc/TPD-PPV/Al showed high rectification ratio (108) and low turn-on voltage (4.2 V). A bright green-yellow light-emission was observed in day-light under forward bias.