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Journal ArticleDOI

Organic electroluminescent devices with improved stability

S. A. Van Slyke, +2 more
- 07 Oct 1996 - 
- Vol. 69, Iss: 15, pp 2160-2162
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TLDR
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.
Abstract
Highly stable organic electroluminescent devices based on vapor‐deposited Alq thin films have been achieved. The improvement in stability is 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. These emissive devices have shown an operational half‐lifetime of about 4000 h from an initial luminance of 510 cd/m2.

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Intermediate electrodes for stacked OLEDs

TL;DR: A stacked OLED as discussed by the authors includes a first electrode, a second electrode, the plurality of luminescent regions disposed between the first and second electrodes, and an intermediate electrode disposed between successive luminescence regions.
Journal ArticleDOI

Origin of negative differential resistance and memory characteristics in organic devices based on tris(8-hydroxyquinoline) aluminum

Jian Lin, +1 more
TL;DR: In this paper, negative differential resistance (NDR) and memory phenomenon have been realized in current-voltage (I-V) characteristics of indium tin oxide/tris(8-hydroxyquinoline) aluminum/aluminum devices.
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Polytriphenylamine derivatives as materials for hole transporting layers in electroluminescent devices

TL;DR: In this paper, a high Tg (ca. 185°C) material for hole-transporting layers has been synthesized and combined with a 1,2,4-triazole derivative yields an effective blue light-emitting device.
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Large work function shift of organic semiconductors inducing enhanced interfacial electron transfer in organic optoelectronics enabled by porphyrin aggregated nanostructures

TL;DR: In this paper, the authors report on large work function shifts induced by the coverage of several organic semiconducting (OSC) films commonly used in organic light emitting diodes (OLEDs) and organic photovoltaics (OPVs) with a porphyrin aggregated layer.
Journal ArticleDOI

Synthesis and characterization of a novel AlQ3‐containing polymer

TL;DR: In this article, the synthesis of a tris(8-hydroxyquinoline)aluminum (AlQ3)-containing poly(arylene ether) (4) is reported, and the presence of AlQ3 pendants in polymer 4 is confirmed by NMR, ultraviolet-visible, photoluminescence and gel permeation chromatography analyses.
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