Results 1 to 10 of about 57,464 (334)

Analysis of Transient Degradation Behaviors of Organic Light-Emitting Diodes under Electrical Stress

open access: yesApplied Sciences, 2021
Despite the wide application of organic light-emitting diodes (OLEDs), the performance of OLED devices is sometimes limited by their reliabilities. In this paper, we report the transient degradation behaviors of fluorescent blue OLEDs, where both the ...
Gyeong Won Lee   +5 more
doaj   +1 more source

Threshold voltage instability and polyimide charging effects of LTPS TFTs for flexible displays

open access: yesScientific Reports, 2021
In this paper, we investigate the Vth shift of p-type LTPS TFTs fabricated on a polyimide (PI) and glass substrate considering charging phenomena. The Vth of the LTPS TFTs with a PI substrate positively shift after a bias temperature stress test. However,
Hyojung Kim   +5 more
doaj   +1 more source

Thienothiophene-based organic light-emitting diode: synthesis, photophysical properties and application

open access: yesBeilstein Journal of Organic Chemistry, 2023
A donor–π–acceptor (D–π–A)-type pull–push compound, DMB-TT-TPA (8), comprising triphenylamine as donor and dimesitylboron as acceptor linked through a thieno[3,2-b]thiophene (TT) π-conjugated linker bearing a 4-MeOPh group, was designed, synthesized, and
Recep Isci, Turan Ozturk
doaj   +1 more source

Sensitized Fluorescence Organic Light-Emitting Diodes with Reduced Efficiency Roll-Off

open access: yesOrganic Materials, 2021
Thermally activated delayed fluorescence (TADF)-sensitized fluorescence is a promising strategy to maintain the advantage of TADF materials and fluorescent materials.
Zhiyi Li   +13 more
doaj   +1 more source

Interfaces and pattern resolution of inkjet-printed organic light-emitting diodes with a novel hole transport layer

open access: yesJournal of Information Display, 2021
In this paper, the effects of the combination of solvents on the uniformity of a dried emitting layer and on device performance were studied. Green emitter inks with various solvents were prepared, and it was seen that good film uniformity of printed ...
Dai Geon Yoon   +3 more
doaj   +1 more source

A brief review of nanoparticles-doped PEDOT:PSS nanocomposite for OLED and OPV

open access: yesNanotechnology Reviews, 2022
In recent years, several strategies have been proposed and demonstrated to enhance the efficiency of organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs). In both types of devices, poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate)
Ong Guang Liang   +6 more
doaj   +1 more source

Long-Term Reliability Characteristics of OLED Panel and Luminaires for General Lighting Applications

open access: yesApplied Sciences, 2020
Organic light-emitting diode is one of the future-proof solid-state-based lighting sources. OLED shows great aesthetic advantages and good color quality without glare. Moreover OLED is a kind of surface light sources naturally.
Jeungmo Kang, Yoonhee Cho, Woojin Jang
doaj   +1 more source

Photonic crystal electrode to be used in organic LED structures [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2013
In this work we report the possibility to obtain a high refractive index grid anode directly on the substrate surface by fabricating a relatively large-area photonic crystal (PC) structure using the combinations of electron beam lithography (EBL) and ...
Petti L.   +7 more
doaj   +1 more source

Recent progress of organic light-emitting diode microdisplays for augmented reality/virtual reality applications

open access: yesJournal of Information Display, 2021
Microdisplays have been used in various applications such as beam projectors, view finders of digital cameras, projection TVs, night vision for military use, and augmented reality/virtual reality (AR/VR) devices.
Chan-mo Kang, Hyunkoo Lee
doaj   +1 more source

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