Journal ArticleDOI
Low voltage organic light emitting diodes featuring doped phthalocyanine as hole transport material
TLDR
In this paper, the authors show that doping of the transport layers can strikingly improve the properties of organic light emitting diodes (OLEDs), and they show that the electroluminescence onset voltage of Diodes containing an vanadyl-phthalocyanine (VOPc) hole transport layer intentionally doped with tetrafluorotetracyano-quinodimethan (F4-TCNQ) is reduced by up to an order of magnitude compared to OLED with undoped VOPc.Abstract:
We show that doping of the transport layers can strikingly improve the properties of organic light emitting diodes (OLEDs). The electroluminescence onset voltage of diodes containing an vanadyl–phthalocyanine (VOPc) hole transport layer intentionally doped with tetrafluorotetracyano-quinodimethan (F4-TCNQ) is reduced by up to an order of magnitude compared to OLED with undoped VOPc. The improved properties of our devices can be explained by the improved conductivity and better injection for a doped transport layer.read more
Citations
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Electron and ambipolar transport in organic field-effect transistors.
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Chemical doping of graphene
Hongtao Liu,Yunqi Liu,Daoben Zhu +2 more
TL;DR: In this paper, a summary of chemical doping of graphene aimed at tuning the electronic properties of graphene is presented, which will be beneficial to designing high performance electronic devices based on chemically doped graphene.
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Highly efficient organic devices based on electrically doped transport layers.
TL;DR: Most present-day semiconductor devices use inorganic crystalline materials, with single-crystalline silicon dominating other materials like GaAs by about a factor of 1000, but organic semiconductors have recently gained much attention and are already broadly applied as photoconductors for copiers and laser printers.
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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.
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Transition Metal Oxides for Organic Electronics: Energetics, Device Physics and Applications
TL;DR: An overview of TMO-based device architectures ranging from transparent OLEDs to tandem OPV cells is given, and various TMO film deposition methods are reviewed, addressing vacuum evaporation and recent approaches for solution-based processing.
References
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Journal ArticleDOI
Organic Electroluminescent Diodes
Ching Wan Tang,Steven A Vanslyke +1 more
TL;DR: In this article, a double-layer structure of organic thin films was prepared by vapor deposition, and efficient injection of holes and electrons was provided from an indium-tinoxide anode and an alloyed Mg:Ag cathode.
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
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.
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