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

F Tenopala‐Carmona, OS Lee, E Crovini… - Advanced …, 2021 - Wiley Online Library
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 …

Origin and control of orientation of phosphorescent and TADF dyes for high‐efficiency OLEDs

KH Kim, JJ Kim - Advanced Materials, 2018 - Wiley Online Library
It has been known for decades that the emitting dipole orientation (EDO) of emitting dyes
influences the outcoupling efficiency of organic light‐emitting diodes (OLEDs). However, the …

Efficiency roll‐off in organic light‐emitting diodes

C Murawski, K Leo, MC Gather - Advanced Materials, 2013 - Wiley Online Library
Organic light‐emitting diodes (OLEDs) have attracted much attention in research and
industry thanks to their capability to emit light with high efficiency and to deliver high‐quality …

High‐efficiency deep‐blue‐emitting organic light‐emitting diodes based on iridium (III) carbene complexes

AK Pal, S Krotkus, M Fontani… - Advanced …, 2018 - Wiley Online Library
High‐efficiency pure blue phosphorescent organic light‐emitting diodes (OLEDs) remain
one of the grand challenges, principally because the emissive complexes employed either …

Understanding and predicting the orientation of heteroleptic phosphors in organic light-emitting materials

MJ Jurow, C Mayr, TD Schmidt, T Lampe… - Nature materials, 2016 - nature.com
Controlling the alignment of the emitting molecules used as dopants in organic light-emitting
diodes is an effective strategy to improve the outcoupling efficiency of these devices. To …

Emitter orientation as a key parameter in organic light-emitting diodes

TD Schmidt, T Lampe, D Sylvinson MR, PI Djurovich… - Physical Review …, 2017 - APS
The distinct preferential alignment, ie, horizontal orientation with respect to the substrate
plane, of the optical transition dipole moment vectors (TDMVs) of organic dye molecules is of …

Recent advances in light outcoupling from white organic light-emitting diodes

MC Gather, S Reineke - Journal of Photonics for Energy, 2015 - spiedigitallibrary.org
Organic light-emitting diodes (OLEDs) have been successfully introduced to the smartphone
display market and have geared up to become contenders for applications in general …

Ultrahigh-efficiency solution-processed simplified small-molecule organic light-emitting diodes using universal host materials

TH Han, MR Choi, CW Jeon, YH Kim, SK Kwon… - Science …, 2016 - science.org
Although solution processing of small-molecule organic light-emitting diodes (OLEDs) has
been considered as a promising alternative to standard vacuum deposition requiring high …

Design of heteroleptic Ir complexes with horizontal emitting dipoles for highly efficient organic light-emitting diodes with an external quantum efficiency of 38%

KH Kim, ES Ahn, JS Huh, YH Kim, JJ Kim - Chemistry of Materials, 2016 - ACS Publications
Orientation of emitting dipoles is one of the most important material properties influencing
the efficiency of organic light-emitting diodes (OLEDs). Recently, even globular-shaped Ir …

Nearly 100% horizontal dipole orientation and upconversion efficiency in blue thermally activated delayed fluorescent emitters

SY Byeon, J Kim, DR Lee, SH Han… - Advanced Optical …, 2018 - Wiley Online Library
The relationship between anisotropic orientation and molecular structure of thermally
activated delayed fluorescent (TADF)‐based organic light emitting devices (OLEDs) is …