Journal ArticleDOI
Application of an ultrathin LiF/Al bilayer in organic surface-emitting diodes
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TLDR
In this article, a multilayer stacked cathode consisting of an ultrathin LiF/Al bilayer acting as an effective electron injector, an optically low-loss and electrically conducting silver intermediate layer for sheet resistance reduction, and a transparent and nonconducting capping layer for refractive index matching to optimize optical transmission was constructed.Abstract:
Organic surface-emitting diodes have been constructed with a multilayer stacked cathode consisting of (1) an ultrathin LiF/Al bilayer acting as an effective electron injector, (2) an optically low-loss and electrically conducting silver intermediate layer for sheet resistance reduction, and (3) a transparent and nonconducting capping layer for refractive index matching to optimize optical transmission. The entire cathode structure is prepared by conventional thermal evaporation without incurring radiation damage, and the resulting organic surface-emitting diodes exhibit superior electrical and optical characteristics.read more
Citations
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Journal ArticleDOI
Recent progress of molecular organic electroluminescent materials and devices
L.S Hung,Chin H. Chen +1 more
TL;DR: In this paper, a review is presented on recent progress in organic electroluminescent materials and devices, with emphasis on their material issues pertaining to charge transport, color, and luminance efficiencies.
Journal ArticleDOI
White organic light-emitting diodes: Status and perspective
TL;DR: In this paper, the physics of a variety of device concepts that have been introduced to realize white organic light-emitting diodes based on both polymer and small-molecule organic materials are discussed.
Journal ArticleDOI
Thin-film permeation-barrier technology for flexible organic light-emitting devices
John Lewis,M.S. Weaver +1 more
TL;DR: In this paper, a review of permeation-barrier technologies as well as the current status of thin-film permeation barriers for organic light-emitting devices (OLEDs) is provided.
Patent
Light-emitting element, light-emitting device, and electronic device
TL;DR: In this paper, a light-emitting element consisting of a lightemitting layer and a layer for controlling movement of carriers between a pair of electrodes is presented, whereby change in carrier balance with time can be suppressed.
Journal ArticleDOI
Recent Developments in Top‐Emitting Organic Light‐Emitting Diodes
TL;DR: The microcavity theory typically used in top-emitting OLEDs is described in detail here, and methods for producing and understanding monochromatic (red, green, and blue) and white top-Empirical OLEDs are summarized and discussed.
References
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Journal ArticleDOI
Organic electroluminescent devices with improved stability
TL;DR: In this article, a stable organic electroluminescent devices based on vapor-deposited Alq thin films have been achieved, which are derived from several factors including: (1) a multilayer thin-film structure with a CuPc stabilized hole-injection contact, (2) a hole-transport diamine layer using a naphthyl substituted benzidine derivative, and (3) an ac drive wave form.
Journal ArticleDOI
Enhanced electron injection in organic electroluminescence devices using an Al/LiF electrode
TL;DR: In this article, an ultrathin LiF layer adjacent to an electron-transporting layer and an aluminum outerlayer was used as an electrode for organic electroluminescent devices.
Journal ArticleDOI
Bright organic electroluminescent devices having a metal-doped electron-injecting layer
Junji Kido,Toshio Matsumoto +1 more
TL;DR: In this paper, a metal-doped organic layer was used as an electron-injecting layer at the interface between the cathode and the emitter layer of a bright organic electroluminescent device.
Journal ArticleDOI
Transparent organic light emitting devices
TL;DR: In this article, the authors report the demonstration of transparent organic light emitting devices (OLEDs) which are ∼70% transparent throughout the visible spectrum when switched off, and emit light from both sides with a total external quantum efficiency of ∼0.1% when turned on.
Journal ArticleDOI
Highly efficient and bright organic electroluminescent devices with an aluminum cathode
Ghassan E. Jabbour,Yutaka Kawabe,Sean E. Shaheen,J. F. Wang,Michael M. Morrell,Bernard Kippelen,N. Peyghambarian +6 more
TL;DR: The electron injection process of organic devices has been enhanced tremendously by inserting a layer of LiF with appropriate thickness between the cathode and a quinacridone doped organic layer as discussed by the authors.