physica status solidi (a) · 2012 · 13 citations · 22 references
EngineeringMaterials EngineeringMaterials ScienceElectronic MaterialsSemiconductor DevicesSemiconductor MaterialsLight-emitting DiodesLuminescent MaterialsOptoelectronic DevicesOptoelectronic MaterialsOrganic SemiconductorsSemiconductor Device MaterialsConductionConductivityCurrent DensityIndium Tin Oxide Thin FilmsOrganic ElectronicsOrganic Light-emitting DiodesOrganic Light-emitting MaterialsTin-doped Indium Oxide
Abstract Inverted bottom‐emission organic light emitting diodes (IBOLEDs) employing the electron injection structure of indium tin oxide (ITO)/1,4,5,8‐naphthalene‐tetracarboxylic‐dianhydride (NTCDA)/Li 2 CO 3 doped bathocuproine (BCP) (1:4 Li 2 CO 3 :BCP) were fabricated, where NTCDA and BCP stand for NTCDA and BCP, respectively. The NTCDA on ITO was characterized crystalline and n‐doped as a result of the interaction between ITO and NTCDA. Compared to the IBOLED using the electron injection structure of ITO/10 nm 1:4 Li 2 CO 3 :BCP, the one utilizing the electron injection structure of ITO/3 nm NTCDA/7 nm 1:4 Li 2 CO 3 :BCP showed the remarkable increases in both current density and efficiency, mainly due to the higher electron conductivity of n‐doped NTCDA than that of n‐doped BCP. The dependence of the current conduction in IBOLED on the thickness of NTCDA was investigated. We provide a simple method to significantly enhance the performance of IBOLEDs.
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Molecular level alignment at organic semiconductor-metal interfaces
Ian G. Hill, A. Rajagopal, Antoine Kahn et al. · Applied Physics Letters · 1998 · 450 citations
Transparent organic light emitting devices
G. Gu, Vladimir Bulović, P. E. Burrows et al. · Applied Physics Letters · 1996 · 441 citations