Understanding spontaneous orientation polarization of amorphous organic semiconducting films and its application to devices

Y Noguchi, Y Tanaka, H Ishii, W Brütting - Synthetic Metals, 2022 - Elsevier
Spontaneous orientation polarization (SOP) of amorphous organic semiconducting films has
attracted much attention because of its frequent observation in common organic light …

Rational Ligand Design of Heteroleptic Iridium (III) Complexes toward Nearly Perfect Horizontal Dipole Orientation for Highly Efficient Red‐Emitting Phosphorescent …

S Kim, JM Kim, J Choi, M Sim… - Advanced Functional …, 2023 - Wiley Online Library
The horizontal orientation of the transition dipole moment of the phosphorescent emitters is
understood to be an important factor to enhance the external quantum efficiency (EQE) of …

One-Pot Synthesis of Acetylacetonate-Based Isomeric Phosphorescent Cyclometalated Iridium (III) Complexes via Random Cyclometalation: A Strategy for Excited …

P Tao, Z Lv, FQ Zhao, XK Zheng, H Jiang, W Li… - Inorganic …, 2023 - ACS Publications
The excited-state manipulation of the phosphorescent iridium (III) complexes plays a vital
role in their photofunctional applications. The development of the molecular design strategy …

Controlling Spontaneous Orientation Polarization in Organic Semiconductors─ The Case of Phosphine Oxides

A Cakaj, M Schmid, A Hofmann… - ACS Applied Materials & …, 2023 - ACS Publications
Upon film growth by physical vapor deposition, the preferential orientation of polar organic
molecules can result in a nonzero permanent dipole moment (PDM) alignment, causing a …

Enhanced Emitting Dipole Orientation Based on Asymmetric Iridium (III) Complexes for Efficient Saturated‐Blue Phosphorescent OLEDs

K Shi, C Wu, H Zhang, KN Tong, W He, W Li… - Advanced …, 2024 - Wiley Online Library
Three novel asymmetric Ir (III) complexes have been rationally designed to optimize their
emitting dipole orientations (EDO) and enhance light outcoupling in blue phosphorescent …

Naphthyridine-based iridium (iii) complexes for green to red OLEDs with EQEs over 30% and low efficiency roll-off

G Lu, R Wu, N Li, X Wang, L Zhou… - Journal of Materials …, 2022 - pubs.rsc.org
Four new naphthyridine-based iridium (III) complexes, namely (dfpmp) 2Ir (mmND),(mtfmpp)
2Ir (mmND),(tfmptp) 2Ir (mmND), and (mtfmptp) 2Ir (mmND), were designed and …

On the Orientation Mechanism of Nonpolar Dyes in Light-Emitting Guest–Host Systems

BM Nguyen, M Schmid, J Kirsch, A Cakaj… - Chemistry of …, 2023 - ACS Publications
Alignment of the emissive transition dipoles in organic guest–host systems is a powerful tool
to enhance light outcoupling from organic light-emitting diodes. Here, we study the …

From molecule to device: prediction and validation of the optical orientation of iridium phosphors in organic light-emitting diodes

C Degitz, M Schmid, F May, J Pfister, A Auch… - Chemistry of …, 2022 - ACS Publications
Due to their thin amourphous structure, unique electrical properties, and the associated
variety of possible applications, OLEDs can now be found in smartphones, TVs, laptops, and …

Tailoring optoelectronic properties of benzimidazole-based iridium (Ⅲ) complexes through rational isomer engineering

HS Liao, X Xia, YX Hu, HJ Chi, YL Lv, X Zhu, X Li - Synthetic Metals, 2022 - Elsevier
Abstract Iridium (Ⅲ)(Ir (Ⅲ)) complexes are widely used in commercial organic light-emitting
diodes due to their excellent luminescent property. In the development of Ir (Ⅲ) complexes …

Effect of ancillary ligand on the photoluminescent and electroluminescent properties of blue Ir (III) complexes bearing main bipyridine ligand

J Kang, R Zaen, JH Lee, H Hwang, KM Park… - Chemical Engineering …, 2022 - Elsevier
Homoleptic and heteroleptic cyclometalated blue iridium (III) complexes, namely, 1 and 2,
incorporating 2′, 6′-dimethoxy-5-trimethylsilyl-2, 3′-bipyridine (OMe 2 py-TMSpy) as the …