Highly Improved Electroluminescence from a Series of Novel Eu(III) Complexes with Functional Single-Coordinate Phosphine Oxide Ligands: Tuning the Intramolecular Energy Transfer, Morphology, and Carrier Injection Ability of the Complexes.

Highly Improved Electroluminescence from a Series of Novel Eu(III) Complexes with Functional Single-Coordinate Phosphine Oxide Ligands: Tuning the Intramolecular Energy Transfer, Morphology, and Carrier Injection Ability of the Complexes. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Highly Improved Electroluminescence from a Series of Novel Eu(III) Complexes with Functional Single-Coordinate Phosphine Oxide Ligands: Tuning the Intramolecular Energy Transfer, Morphology, and Carrier Injection Ability of the Complexes. Abstract Text:

Hui Xu,Kun Yin,Wei Huang,Hui Xu,Kun Yin,Wei Huang,

The functional single-coordinate phosphine oxide ligands (4-diphenylaminophenyl)diphenylphosphine oxide (TAPO), (4-naphthalen-1-yl-phenylaminophenyl)diphenylphosphine oxide (NaDAPO), and 9-[4-(diphenylphosphinoyl)phenyl]-9H-carbazole (CPPO), as the direct combinations of hole-transporting moieties, and electron-transporting triphenylphosphine oxide (TPPO) were designed and synthesized (amines or carbazole), together with their Eu(III) complexes [Eu(tapo)(2)(tta)(3)] (1), [Eu(nadapo)(2)(tta)(3)] (2), and [Eu(cppo)(2)(tta)(3)] (3; TTA: 2-thenoyltrifluoroacetonate). The investigation indicated that by taking advantage of the modification inertia of the phosphine oxide ligands, the direct introduction of the hole-transport groups as chromophore made TAPO, NaDAPO, and CPPO obtain the most compact structure and mezzo S(1) and T(1) energy levels, which improved the intramolecular energy transfer in their Eu(III) complexes. The amorphous phase of 1-3 proved the weak intermolecular interaction, which resulted in extraordinarily low self-quenching of the complexes. The excellent double-carrier transport ability of the ligands was studied with Gaussian calculations, and the bipolar structure of TAPO and CPPO was proved. The great improvement of the double-carrier transport ability of 1-3 was shown by cyclic voltammetry. Their HOMO and LUMO energy levels of around 5.3 and 3.0 eV, respectively, are the best results for Eu(III) complexes reported so far. A single-layer organic light-emitting diode of 2 had the impressive brightness of 59 cd m(-2) which, to the best of our knowledge, is the highest reported so far. Both of the four-layer devices based on pure 1 and 2 had a maximum brightness of more than 1000 cd m(-2), turn-on voltages lower than 5 V, maximum external quantum yields of more than 3 % and excellent spectral stability.

Highly Improved Electroluminescence from a Series of Novel Eu(III) Complexes with Functional Single-Coordinate Phosphine Oxide Ligands: Tuning the Intramolecular Energy Transfer, Morphology, and Carrier Injection Ability of the Complexes. Publishing Authors By Initials

H Xu,K Yin,W Huang,H Xu,K Yin,W Huang,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Highly Improved Electroluminescence from a Series of Novel Eu(III) Complexes with Functional Single-Coordinate Phosphine Oxide Ligands: Tuning the Intramolecular Energy Transfer, Morphology, and Carrier Injection Ability of the Complexes. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Chemistry (Weinheim an der Bergstrasse, Germany)

VOLUME: 13

Page Numbers: 10281-93

Journal Abbreviation:

ISSN: 0947-6539

DAY: 17

MONTH: 12

YEAR: 2007

Highly Improved Electroluminescence from a Series of Novel Eu(III) Complexes with Functional Single-Coordinate Phosphine Oxide Ligands: Tuning the Intramolecular Energy Transfer, Morphology, and Carrier Injection Ability of the Complexes. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9513783

Highly Improved Electroluminescence from a Series of Novel Eu(III) Complexes with Functional Single-Coordinate Phosphine Oxide Ligands: Tuning the Intramolecular Energy Transfer, Morphology, and Carrier Injection Ability of the Complexes. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Highly Improved Electroluminescence from a Series of Novel Eu(III) Complexes with Functional Single-Coordinate Phosphine Oxide Ligands: Tuning the Intramolecular Energy Transfer, Morphology, and Carrier Injection Ability of the Complexes. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Highly Improved Electroluminescence from a Series of Novel Eu(III) Complexes with Functional Single-Coordinate Phosphine Oxide Ligands: Tuning the Intramolecular Energy Transfer, Morphology, and Carrier Injection Ability of the Complexes.

AFFILIATION: School of Chemistry and Materials, Heilongjiang University (HLJU), 74 Xuefu Road, Harbin 150080, China.

Country: Germany

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Chemistry

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Highly Improved Electroluminescence from a Series of Novel EuIII Complexes with Functional Single-Coordinate Phosphine Oxide Ligands: Tuning the Intramolecular Energy Transfer, Morphology, and Carrier Injection Ability of the Complexes Related Publications

• Clinicopathological observation of renal adenomas.
• Effects of the central amygdaloid nucleus lesions on the gustatory responses in the parabrachial nucleus in rats.
• Ehlers-Danlos syndrome: case and pedigree report and review.
• Telangiectatic osteosarcoma: a clinicopathologic analysis of 14 cases.
• [A rapid and simple detection of DNA fragment with point mutation by capillary electrophoresis]
• [A simple and rapid new method for SNP typing by single-tube bi-directional allele specific amplification]
• [Algorithms of multiband remote sensing for coastal red tide waters]
• [Analysis of factors correlated to death and reinfarction in patients with acute myocardial infarction]
• [Application of liposuction in scar repair]
• [Biomechanical evaluation of the stability of General spine system]
• [Clinical analysis of combined resection for T4 gastric cancer: report of 69 cases]
• [Determination of residues of organic chloride pesticide in Chinese Medicinal materials with capillary gas chromatography]
• [Ecological characteristics of Prorocentrum dentatum and the cause of harmful algal bloom formation in China Sea]
• [Effect of intracerebroventricular injection of histamine on carotid sinus baroreceptor reflex in anesthetized rats and its mechanism]
• [Experience with cardioventer defibrillator therapy in 113 patients]
• [Lower back pain in truck drivers working in plateau areas and its prevention]
• [Mammographic findings of gynecomastia]
• [Miniature quadrupole mass spectrometer array and its applications in manned spaceflight]
• [Molecular identification of human/goat xenogeneic model]
• [Phosphorylated JNK mediated apoptosis induced by all trans retinoid acid in human retinoblastoma cell line]
• [Protective effects of c-jun anti-sense gene recombinant transfection on rat cardiomyocytes inflicted by hypoxia and burn serum]
• [Purification and stability studies of prokaryotic PDCD5 protein]
• [Rat heart transplantation immune tolerance induced by blockade of B7-CD28 interaction]
• [Repair of facial defect with expanded skin flap from medial upper arm]
• [Secondary reconstruction of post-fracture deformities in the nasal-orbital ethmoid region]
• [Study on morphological change in intestinal mucosa from injury to repair after hemorrhagic shock]
• [Study on the therapeutic effect of combined use of obidoxime and atropine with respiratory machine on respiratory muscle paralysis caused by omethoate poisoning of rats]
• [The correlations between glucocorticoid receptor of lymphocyte and immune function]
• [The reason and prevention of upper cervical reoperations]
• [The relation and evaluation of the vertebral artery and the nerve root to posterior lateral mass screw fixation]