Results 101 to 110 of about 38,475 (330)

Enhanced Stability of Cd‐Free Quantum Dot Light‐Emitting Diodes via Yttrium Acetate‐Modified ZnMgO: Suppressing Mg Migration

Advanced Optical Materials, EarlyView.
A surface passivation strategy using yttrium acetate to suppress Mg ion migration from the ZnMgO electron transport layer is proposed. This treatment restores oxygen vacancies on the ZnMgO surface, enhancing device stability. The Cd‐free quantum dot light‐emitting diodes demonstrate a 65.5% increase in operational lifetime with an external quantum ...
Hansol Choi, Doyoon Shin, Wan Ki Bae, Hyunho Lee   +3 more
wiley   +1 more source

Synthesis, properties, and some rhodium, iridium, and platinum complexes of a series of bulky m-terphenylphosphine ligands [PDF]

, 2016
A series of sterically demanding aryl phosphine ligands (L) bearing terphenyl substituents, PR2Ar′ (R = hydrocarbyl, Ar′ = 2,6-diarylphenyl radical) has been prepared and characterized. The stability of these ligands towards oxidation in the air has been
Campos Manzano, Jesús, Carmona Guzmán, Ernesto, Conejero Iglesias, Salvador, Fernández Espada, María, López Serrano, Joaquín, Maya Díaz, Celia María, Moreno Díaz, Juan José, Navarro Gilabert, Carlos, Ortega Moreno, Laura, Peloso, Riccardo   +9 more
core   +1 more source

High‐Efficiency Blue‐Emitting Multi‐Resonance TADF Organic Light‐Emitting Diodes Constructed on Spiro Quinolinoacridine/Fluorene‐diphenylphosphine Oxide Positional Isomers

Advanced Optical Materials, EarlyView.
We report spiro‐configured hosts constructed on the assembly of a quinolinoacrdine unit and different fluorene positional isomers for high‐performance blue MR‐TADF Organic Light‐Emitting Diodess. The v‐DABNA:CN‐Ir emissive layer combination with SQA‐4‐FPOPh2 as host shows a narrowband emission peak and a high maximum external quantum efficiency of 22.9%
Kelvine Letellier, Yue‐Jian Yang, Wei Gao, Dong‐Ying Zhou, Denis Ari, Cassandre Quinton, Zuo‐Quan Jiang, Cyril Poriel   +7 more
wiley   +1 more source

Straightforward Synthesis of Bifunctional Phosphorus Phenols via Phosphination of In Situ Generated o-Quinone Methides

Molecules, 2018
An efficient and practical approach towards bifunctional phosphorus phenols has been developed through a reaction of diphenylphosphine oxide and the o-quinone methides in situ generated from 2-tosylalkyl phenols under basic conditions.
Zhangpei Chen, Qinglong Shi, Gongshu Wang, Siwen Chen, Jianshe Hu   +4 more
doaj   +1 more source

Dialing in single-site reactivity of a supported calixarene-protected tetrairidium cluster catalyst. [PDF]

, 2017
A closed Ir4 carbonyl cluster, 1, comprising a tetrahedral metal frame and three sterically bulky tert-butyl-calix[4]arene(OPr)3(OCH2PPh2) (Ph = phenyl; Pr = propyl) ligands at the basal plane, was characterized with variable-temperature 13C NMR ...
Ertler, Daniel, Gates, Bruce C, Katz, Alexander, Okrut, Alexander, Palermo, Andrew, Solovyov, Andrew   +5 more
core   +2 more sources

Thermally Activated Delayed Fluorescence and Beyond. Photophysics and Material Design Strategies.

Advanced Photonics Research, EarlyView.
Photophysical properties of TADF molecules are determined by characteristic parameters that are discussed in detail(. Moreover, using femtosecond time‐resolved spectroscopy, quantum mechanical considerations, and state‐of‐art calculations, deeper understanding allows us to design breakthrough Cu(I) and organic TADF‐ OLED materials. For the latter ones,
Hartmut Yersin, Uwe Monkowius
wiley   +1 more source

Interactions of phosphate, phosphine oxide and phosphoramide ligands with Th(IV)

Results in Chemistry
The complexation behavior of phosphate, phosphine oxide, and phosphoramide ligands with Th(IV) is investigated at the Density Functional Theory (DFT) level.
Aditya Ramesh Sachin, Gopinadhanpillai Gopakumar, Cherukuri Venkata Siva Brahmananda Rao   +2 more
doaj  

Synthesis of γ-hydroxypropyl P-chirogenic (±)-phosphorus oxide derivatives by regioselective ring-opening of oxaphospholane 2-oxide precursors

Beilstein Journal of Organic Chemistry, 2015
The synthesis of P-chirogenic (±)-phosphine oxides and phosphinates via selective nucleophilic ring opening of the corresponding oxaphospholanes is described.
Iris Binyamin, Shoval Meidan-Shani, Nissan Ashkenazi   +2 more
doaj   +1 more source

Extraction of Uranium(VI) by Di-(2-ethylhexyl)-phosphoric acid, Tributyl Phosphate and Trioctyl Phosphine Oxide Gels

CHIMIA, 1979
The gel-liquid extraction of U(VI) has been studied using the equilibrium distribution method. Gels used in this study were prepared by swelling styrene divinylbenzene with di-(2-ethyl-hexyl)-phosphoric acid (HDEHP), tributyl phosphate, trioctyl ...
Kamel Shakir, Shokry G. Beheir
doaj   +1 more source

Tri-methyl-phosphine oxide dihydrate. [PDF]

IUCrdata, 2023
Urlep M, Cerkovnik J, Lozinšek M.
europepmc   +1 more source