Two novel aromatic hydrocarbons: facile synthesis, photophysical properties and applications in deep-blue electroluminescence

Novel solution processable aromatic hydrocarbons have been designed and synthesized for deep-blue OLEDs with a maximum emission peak of 410 nm and CIE coordinates of (0.16, 0.08).

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Synthesis, crystal structure and photophysical properties of deep-blue emitting cationic iridium(III) complexes with 2ʹ,6ʹ-diﬂuoro-2,3ʹ-bipyridine cyclometalated ligand and pyrazole-type ancillary ligands

Journal of Luminescence ◽

10.1016/j.jlumin.2020.117880 ◽

2021 ◽

Vol 233 ◽

pp. 117880

Author(s):

Fuli Zhang ◽

Pengchao Zhou ◽

Shulin Zhang ◽

Yuanyang Li ◽

Quanfeng Zhang ◽

...

Keyword(s):

Crystal Structure ◽

Photophysical Properties ◽

Ancillary Ligands ◽

Deep Blue ◽

Cyclometalated Ligand

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Facile Synthesis of Oxidation-Resistant Copper Nanowires toward Solution-Processable, Flexible, Foldable, and Free-Standing Electrodes

Small ◽

10.1002/smll.201401276 ◽

2014 ◽

pp. n/a-n/a ◽

Cited By ~ 19

Author(s):

Zhenxing Yin ◽

Chaedong Lee ◽

Sanghun Cho ◽

Jeeyoung Yoo ◽

Yuanzhe Piao ◽

...

Keyword(s):

Copper Nanowires ◽

Facile Synthesis ◽

Free Standing ◽

Oxidation Resistant ◽

Solution Processable

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Multicolor Emission and Photophysical Properties of Proton-Responsive Cyclometallated Iridium(III) Complex in Transparent Cation-Exchange Membrane

Crystals ◽

10.3390/cryst10080653 ◽

2020 ◽

Vol 10 (8) ◽

pp. 653

Author(s):

Hajime Kamebuchi ◽

Yu Fujimura ◽

Taiho Yoshioka ◽

Atsushi Okazawa ◽

Makoto Tadokoro ◽

...

Keyword(s):

Cation Exchange ◽

Photophysical Properties ◽

Thermal Relaxation ◽

Polymer Chains ◽

Cation Exchange Membrane ◽

Quantum Yields ◽

Transparent Film ◽

Maximum Emission ◽

Ph Dependent ◽

Exchange Membrane

A transparent film allowing tunable multicolor emission based on a composite of an organometallic compound and a cation-exchange membrane has been developed, in which the cyclometallated iridium(III) complex [IrIII(4Py-ppy)3] (=tris[2-(2-pyridinyl-κN)-4-(4-pyridinyl)phenyl-κC]iridium) (1) with pH-dependent emission wavelengths has been incorporated into Nafion by cation exchange. Soaking Nafion in the solution of 1 for 24 h and exposed to buffers at pH 2, 4, and 10 resulted in maximum emission wavelengths of 587, 560, and 503 nm, respectively. The photophysical properties of 1@Nafion were also enhanced, as its maximum emission wavelength was more blue-shifted than those of 602, 564, and 503 nm in the solutions. The emission quantum yields (Φ) and lifetimes (τ) of 1@Nafion prepared under an acidic condition were up to Φ = 1.8% and τ = 0.11, 0.92 μs, which are considerably higher than the corresponding solutions of Φ = 0.5% and τ = 0.02, 0.18 μs. This is attributed to the fact that 1 is surrounded by the polymer chains of Nafion and immobilized in a relatively rigid medium, which hinders non-radiative deactivation such as thermal relaxation.

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Clickable azide-functionalized bromoarylaldehydes – synthesis and photophysical characterization

Beilstein Journal of Organic Chemistry ◽

10.3762/bjoc.16.139 ◽

2020 ◽

Vol 16 ◽

pp. 1683-1692 ◽

Cited By ~ 1

Author(s):

Dominik Göbel ◽

Marius Friedrich ◽

Enno Lork ◽

Boris J Nachtsheim

Keyword(s):

High Efficiency ◽

Photophysical Properties ◽

Covalent Attachment ◽

Terminal Alkynes ◽

Facile Synthesis ◽

Triazole Derivatives ◽

Emission Behavior ◽

Substituted Benzaldehydes ◽

Covalently Linked

Herein, we present a facile synthesis of three azide-functionalized fluorophores and their covalent attachment as triazoles in Huisgen-type cycloadditions with model alkynes. Besides two ortho- and para-bromo-substituted benzaldehydes, the azide functionalization of a fluorene-based structure will be presented. The copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC) of the so-synthesized azide-functionalized bromocarbaldehydes with terminal alkynes, exhibiting different degrees of steric demand, was performed in high efficiency. Finally, we investigated the photophysical properties of the azide-functionalized arenes and their covalently linked triazole derivatives to gain deeper insight towards the effect of these covalent linkers on the emission behavior.

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Facile Synthesis and Evaluation of Electron Transport and Photophysical Properties of Photoluminescent PDI Derivatives

ACS Omega ◽

10.1021/acsomega.9b02514 ◽

2019 ◽

Vol 4 (22) ◽

pp. 19735-19745 ◽

Cited By ~ 4

Author(s):

Samya Naqvi ◽

Mahesh Kumar ◽

Rachana Kumar

Keyword(s):

Electron Transport ◽

Photophysical Properties ◽

Facile Synthesis

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Hexa-peri-hexabenzocoronene in organic electronics

Pure and Applied Chemistry ◽

10.1351/pac-con-11-09-24 ◽

2012 ◽

Vol 84 (4) ◽

pp. 1047-1067 ◽

Cited By ~ 57

Author(s):

Helga Seyler ◽

Balaji Purushothaman ◽

David J. Jones ◽

Andrew B. Holmes ◽

Wallace W. H. Wong

Keyword(s):

Polycyclic Aromatic Hydrocarbons ◽

Organic Compounds ◽

Organic Electronics ◽

Aromatic Hydrocarbons ◽

Photophysical Properties ◽

Review Article ◽

Liquid Crystallinity ◽

Π Interactions ◽

Synthesis Properties ◽

Polycyclic Aromatic

Polycyclic aromatic hydrocarbons (PAHs) are in a class of functional organic compounds with increasing importance in organic electronics. Their tunable photophysical properties and typically strong intermolecular associations make them ideal materials in applications where control of charge mobility is essential. Hexa-peri-hexabenzocoronene (HBC) is a disc-shaped PAH that self-associates into columnar stacks through strong π–π interactions. By decorating the periphery of the HBC molecule with various substituents, a range of properties and functions can be obtained including solution processability, liquid crystallinity, and semiconductivity. In this review article, the synthesis, properties, and functions of HBC derivatives are presented with focus on work published in the last five years.

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