IEEE Transactions on Electron Devices · 2002 · 29 citations · 22 references
Natural SciencesChemistryMaterials ScienceOptical MaterialsOptoelectronicsOrganic ChemistryCarrier TransportDopingHost-guest ChemistryLight-emitting DiodesLuminescent MaterialsOptoelectronic DevicesCarrier Transport In Organic SemiconductorsDoping In Organic SemiconductorsElectron Transport LayersHole TransportHole Transport LayersLight-emitting DevicesOrganic ElectronicsOrganic Light-emitting Diodes
Organic light-emitting diodes made of tris-8-(hydroxyquinoline) aluminum as the electron-transport layers, N, N'-diphenyl-N, N' bis (3-methylphenyl)-1, 1'-biphenyl-4,4'-diamine (TPD) as the hole-transport layers, and 2-1, 1-dimethylethyl-62-2, 3, 6, 7-tetrahydro-1, 1, 7, 7-tetramethyl-1H, 5H-benzo(ij) quinolizin-9-yl ethenyl-4H-pyran-4-ylidene propanedinitrile (DCJTB) as the guest dopant have been studied. It is determined that (a) emission from guest DCJTB in a host transport material results primarily from separate trapping of holes and electrons, rather than the more commonly proposed Forster transfer mechanism, (b) DCJTB is a more efficient hole than electron trap, and (c) the lifetime of a doped device is longer when TPD is used as the host material.
22
Organic electroluminescent diodes
Chak Wah Tang, S. A. VanSlyke · Applied Physics Letters · 1987 · 14.3K citations
Natural Sciences, Materials Engineering, Materials Science +17
Degradation Mechanism of Small Molecule-Based Organic Light-Emitting Devices
Hany Aziz, Zoran D. Popović, Nan‐Xing Hu et al. · Science · 1999 · 837 citations