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 …

Optogenetic stimulation probes with single-neuron resolution based on organic LEDs monolithically integrated on CMOS

AJ Taal, I Uguz, S Hillebrandt, CK Moon… - Nature …, 2023 - nature.com
The use of optogenetic stimulation to evoke neuronal activity in targeted neural populations—
enabled by opsins with fast kinetics, high sensitivity and cell-type and subcellular specificity …

Absolute Electrochemiluminescence Efficiency Quantification Strategy Exemplified with Ru(bpy)32+ in the Annihilation Pathway

JR Adsetts, K Chu, M Hesari, J Ma, Z Ding - Analytical Chemistry, 2021 - ACS Publications
This work presents a thorough guide to procedures for absolute electrochemiluminescence
(ECL) quantum efficiency (ΦECL) measurements, which if employed effectively should raise …

Highly efficient polaritonic light-emitting diodes with angle-independent narrowband emission

A Mischok, S Hillebrandt, S Kwon, MC Gather - Nature Photonics, 2023 - nature.com
Angle-independent narrowband emission is required for many optoelectronic devices,
ranging from high-definition displays to sensors. However, emerging materials for …

Strong angular and spectral narrowing of electroluminescence in an integrated Tamm-plasmon-driven halide perovskite LED

ZY Ooi, A Jiménez-Solano, K Gałkowski, Y Sun… - Nature …, 2024 - nature.com
Next-generation light-emitting applications such as displays and optical communications
require judicious control over emitted light, including intensity and angular dispersion. To …

Controlling the Emission Zone by Additives for Improved Light‐Emitting Electrochemical Cells

J Ràfols‐Ribé, X Zhang, C Larsen… - Advanced …, 2022 - Wiley Online Library
The position of the emission zone (EZ) in the active material of a light‐emitting
electrochemical cell (LEC) has a profound influence on its performance because of …

Wireless magnetoelectrically powered organic light-emitting diodes

JF Butscher, S Hillebrandt, A Mischok, A Popczyk… - Science …, 2024 - science.org
Compact wireless light sources are a fundamental building block for applications ranging
from wireless displays to optical implants. However, their realization remains challenging …

Mesogenic Groups Control the Emitter Orientation in Multi‐Resonance TADF Emitter Films

D Chen, F Tenopala‐Carmona… - Angewandte Chemie …, 2023 - Wiley Online Library
The use of thermally activated delayed fluorescence (TADF) emitters and emitters that show
preferential horizontal orientation of their transition dipole moment (TDM) are two emerging …

Dual-color emissive OLED with orthogonal polarization modes

R Chen, N Liang, T Zhai - Nature Communications, 2024 - nature.com
Linearly polarized organic light-emitting diodes have become appealing functional
expansions of polarization optics and optoelectronic applications. However, the current …

High brightness, highly directional organic light‐emitting diodes as light sources for future light‐amplifying prosthetics in the optogenetic management of vision loss

S Hillebrandt, C Keum, Y Deng… - Advanced Optical …, 2023 - Wiley Online Library
Optogenetic control of retinal cells transduced with light‐sensitive channelrhodopsins can
enable restoration of visual perception in patients with vision loss. However, a light intensity …