Results 31 to 40 of about 27,237 (259)

Enhanced outcoupling in down-conversion white organic light-emitting diodes using imprinted microlens array films with breath figure patterns

open access: yesScience and Technology of Advanced Materials, 2019
We demonstrate high-performance down-conversion microlens array (DC-MLA) films for white organic light-emitting diodes (OLEDs). The DC-MLA films are readily fabricated by an imprinting method based on breath figure patterns, which are directly formed on ...
Joo Won Han   +8 more
doaj   +1 more source

Highly transparent and conductive metal oxide/metal/polymer composite electrodes for high-efficiency flexible organic light-emitting devices

open access: yesNanophotonics, 2020
Ultrathin metal films emerge as an innovative category of transparent electrodes in recent decades, holding great promises enabling the next-generation flexible organic light-emitting devices (OLEDs).
Li Yun-Fei   +7 more
doaj   +1 more source

Ultrasonic spray coating of polyethylenimine (ethoxylated) as electron injection and transport layer for organic light emitting diodes: The influence of layer morphology and thickness on the interface physics between polyethylenimine (ethoxylated) and the Al cathode

open access: yesNano Select, 2022
Modern lighting is expected to be light weight, flexible, efficient, non‐expensive and environmentally friendly fabricated. Organic light emitting diodes (OLEDs) meet all these requirements and can be manufactured using inexpensive and roll‐to‐roll ...
Inge Verboven   +7 more
doaj   +1 more source

Silicon-based organic light-emitting diode operating at a wavelength of 1.5 mu m [PDF]

open access: yes, 2000
Copyright 2000 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Curry, RJ   +3 more
core   +1 more source

Electrical and optical analyses of tandem organic light-emitting diodes with organic charge-generation layer

open access: yesAIP Advances, 2018
The electrical and optical properties of tandem organic light-emitting diodes (OLEDs), in which a fluorescent and phosphorescent emitting units are connected by an organic charge-generation layer (CGL), were experimentally analyzed.
Bong Sung Kim   +3 more
doaj   +1 more source

Discovery of two new phases of zirconium tetrakis(8-hydroxyquinolinolate): synthesis, crystal structure and their electron transporting characteristics in organic light emitting diodes (OLEDs) [PDF]

open access: yes, 2011
Two new phases of zirconium tetrakis(8-hydroxyquinolinolate) (Zrq4) have been synthesised and characterised by single crystal X-ray diffraction. Their electrical, electronic, optical and thermal properties have been studied.
Alexander J. Blake   +42 more
core   +1 more source

Effects of the phosphorescent sensitizer on charge dynamics in deep blue phosphor-sensitized-fluorescent organic light-emitting diodes

open access: yesJournal of Information Display, 2021
In phosphor-sensitized-fluorescent organic light-emitting diodes (PSF-OLEDs), triplet excitons generated in the emitting layer (EML) are harvested by the sensitizer and the excitonic energy is efficiently transferred to the fluorescent dopant molecules ...
Hakjun Lee   +5 more
doaj   +1 more source

A solution processed flexible nanocomposite electrode with efficient light extraction for organic light emitting diodes. [PDF]

open access: yes, 2014
Highly efficient organic light emitting diodes (OLEDs) based on multiple layers of vapor evaporated small molecules, indium tin oxide transparent electrode, and glass substrate have been extensively investigated and are being commercialized.
Chou, Shu-Yu   +6 more
core   +2 more sources

Recent progress on exciplex-emitting OLEDs

open access: yesJournal of Information Display, 2019
The thermally-activated-delayed-fluorescence (TADF) characteristics makes exciplexes being the hot subject in the organic light-emitting diode (OLED) research field. The theoretical limit for the efficiency of the conventional fluorescent OLEDs have been
Hwang-Beom Kim, Jang-Joo Kim
doaj   +1 more source

Resonance‐Based Directional Light Emission from Organic Light‐Emitting Diodes: Comparing Integrated Nanopatterns and Color Conversion Waveguide Gratings

open access: yesAdvanced Photonics Research, 2023
Tailoring the angular emission pattern of organic light‐emitting diodes (OLEDs) is a promising approach to increase device performance in many applications.
Janek Buhl   +5 more
doaj   +1 more source

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