Results 21 to 30 of about 223,988 (345)

Inverted device architecture for high efficiency single-layer organic light-emitting diodes with imbalanced charge transport [PDF]

open access: yesNature Communications
Many wide-gap organic semiconductors exhibit imbalanced electron and hole transport, therefore efficient organic light-emitting diodes require a multilayer architecture of electron- and hole-transport materials to confine charge recombination to the ...
Xiao Tan   +9 more
doaj   +2 more sources

Critical role of electrons in the short lifetime of blue OLEDs

open access: yesNature Communications, 2023
Designing robust blue organic light-emitting diodes is a long-standing challenge in the display industry. The highly energetic states of blue emitters cause various degradation paths, leading to collective luminance drops in a competitive manner. However,
Jaewook Kim   +14 more
doaj   +1 more source

Anomalous circularly polarized light emission in organic light-emitting diodes caused by orbital–momentum locking [PDF]

open access: yesNature Photonics, 2022
Circularly polarized light emitted from OLEDs exhibits opposite handedness depending on the propagation direction of the light. Switching the current flow in the OLED also switches the light handedness.
Li Wan   +3 more
semanticscholar   +1 more source

Enhancing the Light Extraction Efficiency in Micro‐Organic Light‐Emitting Diodes with Metalens

open access: yesAdvanced Photonics Research, 2021
Due to the total internal reflection caused by the mismatch of the refractive indices between organic layers and oxide layers within an organic light‐emitting diode (OLED), most of the light energy is trapped inside the device; if the size of an OLED is ...
Jingen Lin   +6 more
doaj   +1 more source

Magnetoelectroluminescence in organic light-emitting diodes [PDF]

open access: yesThe Journal of Chemical Physics, 2016
The magnetoelectroluminescence of conjugated organic polymer films is widely accepted to arise from a polaron pair mechanism, but their magnetoconductance is less well understood. Here we derive a new relationship between the experimentally measurable magnetoelectroluminescence and magnetoconductance and the theoretically calculable singlet yield of ...
Joseph E. Lawrence   +3 more
openaire   +5 more sources

Recent Advances in Silver Nanowires Electrodes for Flexible Organic/Perovskite Light-Emitting Diodes

open access: yesFrontiers in Chemistry, 2022
Flexible organic light-emitting diodes and perovskite light-emitting diodes (PeLEDs) have been investigated as an innovative category of revolutionary LED devices for next-generation flat display and lighting applications.
Shuping Hou   +8 more
doaj   +1 more source

High‐Performance Multi‐Resonance Thermally Activated Delayed Fluorescence Emitters for Narrowband Organic Light‐Emitting Diodes

open access: yesAdvanced Functional Materials, 2023
Multi‐resonance thermally activated delayed fluorescence (MR‐TADF) emitters have drawn considerable attention because of their remarkable optoelectronic properties of high emission efficiency and narrow emission profile, and represent an active subject ...
He Jiang, Jibiao Jin, Wai‐Yeung Wong
semanticscholar   +1 more source

Hybrid nanocomposites for organic light-emitting diodes

open access: yesResults in Optics, 2022
We report the investigation of the electrical and optical properties of hybrid nanocomposite which could help to prepare the solution processable and tunable OLEDs.
N. Bano   +3 more
doaj   +1 more source

Complete polarization of electronic spins in OLEDs

open access: yesNature Communications, 2021
Though literature reports magnetoelectroluminescence (MEL) affects in organic light‐emitting diodes (OLEDs), probing the organic layer’s effective spin polarization remains a challenge.
Tobias Scharff   +5 more
doaj   +1 more source

Identification of the Key Parameters for Horizontal Transition Dipole Orientation in Fluorescent and TADF Organic Light‐Emitting Diodes

open access: yesAdvances in Materials, 2021
In organic light‐emitting diodes (OLEDs), horizontal orientation of the emissive transition dipole moment (TDM) can improve light outcoupling efficiency by up to 50% relative to random orientation. Therefore, there have been extensive efforts to identify
F. Tenopala‐Carmona   +7 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy