Results 101 to 110 of about 1,549,159 (293)

Highly Sensitive Heterojunction‐Gated Phototransistor With Detection Wavelength Ranged From 350 to 1700 Nm

Advanced Science, EarlyView.
This work demonstrates a heterojunction‐gated infrared phototransistor for broadband detection from 350 to 1700 nm. By suppressing defect states on nonpolar (100) facets of large PbS quantum dots via hybrid ligand passivation, the device achieves a room‐temperature detectivity of 5.7 × 1013 Jones at 1650 nm.
Hongkun Duan, Wenyu Zhang, Tao Luo, XiaoLu Xia, Qianxi Yang, Ying Yan, Shengmei Gao, Xitian Yin, Yixiao Niu, Zhiyu Zhao, Jianbing Zhang, Haobin He, Jiang Tang, Ying Wang, Zhiyong Zhang   +14 more
wiley   +1 more source

Tellurophene‐Induced Triplet–Singlet Spin‐Flip Acceleration: An Advanced Design for Narrowband Organoboron Emitters with Fast Reverse Intersystem Crossing

Angewandte Chemie, EarlyView.
Linking an auxiliary dibenzo[b,d]tellurophene unit markedly accelerates exciton spin conversion in multi‐resonance‐type thermally activated delayed fluorescence emitters. Owing to the heavy‐atom effect of tellurium, the corresponding OLEDs retain remarkably high external electroluminescence quantum efficiencies exceeding 25% even at an exceptionally ...
Peiyuan Yang, Jun Hyeon Lee, Kotone Urano, Takuma Yasuda   +3 more
wiley   +2 more sources

N-thioalkylcarbazoles derivatives as new anti-proliferative agents: synthesis, characterisation and molecular mechanism evaluation

Journal of Enzyme Inhibition and Medicinal Chemistry, 2018
Synthetic or natural carbazole derivatives constitute an interesting class of heterocycles, which showed several pharmaceutical properties and occupied a promising place as antitumour tools in preclinical studies. They target several cellular key-points,
Maria Stefania Sinicropi, Domenico Iacopetta, Camillo Rosano, Rosario Randino, Anna Caruso, Carmela Saturnino, Noemi Muià, Jessica Ceramella, Francesco Puoci, Manuela Rodriquez, Pasquale Longo, Maria Rosaria Plutino   +11 more
doaj   +1 more source

Sulfenamides as flame retardants [PDF]

, 2015
FIELD OF THE INVENTION The present invention is in the field of flame retardants and relates to use of sulfenamides as flame retardants, in particular in polymeric sub ...
Aubert, Melanie, Pawelec, Weronika, Tirri, Teija, Wilen, Carl-Eric   +3 more
core  

Isomeric carbazolocarbazoles: synthesis, characterization and comparative study in Organic Field Effect Transistors [PDF]

, 2013
We report here the synthesis and characterization of a new family of isomeric carbazolocarbazole derivatives, namely carbazolo[1,2-a]carbazole, carbazolo[3,2-b]carbazoleand carbazolo[4,3-c]carbazole.
A. Espinosa, A. Facchetti, D. Curiel, M. Allain, M. Más-Montoya, R. Ponce Ortiz, T.J. Marks   +6 more
core   +4 more sources

Efficient Thermally Activated Delayed Fluorescence Conjugated Polymeric Emitters with Tunable Nature of Excited States Regulated via Carbazole Derivatives for Solution-Processed OLEDs

Macromolecules, 2018
For main-chain-type thermally activated delayed fluorescence (TADF) polymeric emitters, conjugated or nonconjugated monomers are generally copolymerized as the spacers to suppress the inter- and intramolecular exciton concentration quenching.
Yuchao Liu, Yukun Wang, Chensen Li, Z. Ren, Dongge Ma, Shouke Yan   +5 more
semanticscholar   +1 more source

Record‐High Performance Hyperfluorescent OLEDs Achieved via Electronic Structure Control of Chlorine‐Diversified MR‐TADF Emitters

Advanced Science, EarlyView.
A late‐stage diversification strategy for the benchmark MR‐TADF emitter ω‐DABNA enables precise electronic structure control via chlorine‐activated functionalization. The resulting derivatives achieve tunable emission from 523 to 533 nm with record‐high EQE1000 up to 34.0% and excellent color purity (CIEy = 0.70–0.73), establishing a versatile platform
Taehwan Lee, Junki Ochi, Shigetada Uemura, Feiran Liu, Jiping Hao, Yasuhiro Kondo, Masahiro Hayakawa, Takuji Hatakeyama   +7 more
wiley   +1 more source

Crystals as Rockets: Modulation of the Salient Temperature in Cocrystals by Solvent Mixture Composition

Angewandte Chemie, EarlyView.
Compositionally engineered mixed solvated cocrystals enable modulation of thermosalient actuation. Guest ratio controls thermosalient temperature and propulsion intensity, providing a tunable platform for designing crystalline systems that exhibit stimuli‐responsive mechanical motion.
Ernesto A. Hernández‐Morales, Dayra Barreto‐Hernández, Dazaet Galicia‐Badillo, Rubén A. Toscano, M. Elena García‐Aguilera, Braulio Rodríguez‐Molina   +5 more
wiley   +2 more sources

Solid-state organization of n-type carbazole-based semiconductors for organic thin-film transistors [PDF]

, 2017
The development of new organic semiconductors has been mainly led by the search of new p-conjugated cores, but recently the use of flexible side chains is attracting more and more attention to control the molecular packing and order in the solid state to
Puigdollers i González, Joaquim, Reig, Marta, Velasco, Dolores   +2 more
core   +2 more sources

High‐Efficiency TADF Dendritic Emitters Enabled by Synchronously Inhibiting Degenerated Triplet Excited States and Structural Relaxation Toward Solution‐Processed OLEDs with EQE Over 33%

Advanced Science, EarlyView.
Asymmetrical thermally activated delated fluorescence dendritic emitters are delicately constructed through symmetry breaking strategy, and near‐unity photoluminescence efficiency and excellent reverse intersystem crossing process are achieved via breaking the degeneracy of vibrational levels and boosting the spin flip of triplet excitons.
Xiaoxiang Yu, Wei Ping, Chengshuang Song, Jinyang Zhao, Lei Hua, Junjie Wang, Shian Ying, Yuchao Liu, Zhongjie Ren, Shouke Yan   +9 more
wiley   +1 more source