Journal ArticleDOI
Organic electroluminescent devices with improved stability
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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.read more
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N1,N1,N3,N3-tetra([1,1′-biphenyl]-4-yl)-N5,N5-diphenylbenzene-1,3,5-triamine: Synthesis, optical properties and application in OLED devices as efficient hole transporting material
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Efficient blue-to-violet organic light-emitting diodes
TL;DR: In this paper, an organic light-emitting diodes emitting in the range of 400nm (violet) to 460nm (blue) were reported, where the basic device structure consists of indium-tin oxide/N, N "-diphenyl- N, N ′-bis-(3-methylphenyl)-1,1′-biphenymyl-4,4′-diamine (TPD)/2,9-dimethyl- 4,7-diphynyl-1,10-phenan
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In Situ Measurements of Work Function of Indium Tin Oxide after UV/Ozone Treatment
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Structural and electronic implications for carrier injection into organic semiconductors
TL;DR: In this article, the structural and electronic interface formation between ITO and prototypical organic small molecular semiconductors was examined in detail: organic layer-thickness dependent Kelvin probe measurements revealed a good alignment of the ITO work function and the highest occupied electronic level of the organic material.
Journal ArticleDOI
The Influence of Quasiplanar Structures of Partially Oxygen-Bridged Triphenylamine Dimers on the Properties of Their Bulk Films
TL;DR: The relationship between molecular orientation and charge-transporting properties in vapor-deposited films of two doubly oxygen-bridged triphenylamine dimers, which differ in their connection mode, was studied in this paper.