Results 71 to 80 of about 1,549,159 (293)

Molecular order of air-stable p-type organic thin-film transistors by tuning the extension of the pi-conjugated core: the cases of indolo[3,2-b]-carbazole and triindole semiconductors [PDF]

, 2015
Charge transport in organic devices depends strongly on the molecular order and morphology of the organic semiconductor thin films. In the design of new organic semiconductors, the selection of the appropriate core plays a key role in the molecular ...
Puigdollers i González, Joaquim, Reig, Marta, Velasco, Dolores   +2 more
core   +2 more sources

Donor–Acceptor Fluorophores for Energy-Transfer-Mediated Photocatalysis [PDF]

, 2018
Triplet–triplet energy transfer (EnT) is a fundamental activation pathway in photocatalysis. In this work, we report the mechanistic origins of the triplet excited state of carbazole-cyanobenzene donor–acceptor (D–A) fluorophores in EnT-based ...
Huang, Jier, Li, Shuzhou, Liu, Qiuhua, Lu, Jingzhi, Pattengale, Brian, Shi, Wenxiong, Yang, Sizhuo, Zhang, Jian   +7 more
core   +3 more sources

Harnessing the Orientation of Columnar Discotic Liquid Crystals for Narrowband Blue Emission with Enhanced Out‐Coupling Efficiency Toward Improvement of SP‐OLEDs Performance

Advanced Functional Materials, EarlyView.
Solution‐processed OLEDs containing discotic liquid‐crystalline MR‐TADF emitters are reported. Supramolecular self‐assembly induces homeotropic columnar alignment, enforcing preferential horizontal orientation of the emitter transition dipole moment in spin‐coated films, which leads to an enhancement in the device light outcoupling efficiency while ...
Joydip De, Abhishek Kumar Gupta, Džiugas Litvinas, Francisco Tenopala‐Carmona, Matthias Lehmann, Malte C. Gather, Eli Zysman‐Colman   +6 more
wiley   +1 more source

Synthesis and optical characterization of bipod carbazole derivatives

Heterocyclic Communications, 2020
In this study, some new biscarbazole derivatives were synthesized for the purpose of being used in OLED technologies and related areas. The following compounds: {1,2-bis(2-(3,6-diphenyl-9H-carbazole-9-yl) ethoxy)ethane (C-1), bis[2-(2-(3,6- diphenyl-9H ...
Çiçek Baki, Çağlı Merve, Tülek Remziye, Teke Ali   +3 more
doaj   +1 more source

??????????????? ??????????????? ??????????????? ???/???/??? ????????? ????????? ?????? ??????????????? ????????? ?????? [PDF]

, 2018
Department of ChemistryRu-based sensitizers (N719, N3, black dye, etc.) have been developed continuously and reached an efficiency of ~11.7% under AM 1.5G irradiation (1000 W/m2).
Kim, Un-Young
core  

Novel liquid crystalline organic semiconducting oligomers incorporating N-heterocyclic carbazole moieties for fluorescent OLEDs [PDF]

, 2017
A novel class of nematic liquid crystalline organic semiconducting oligomers incorporating N-heterocyclic carbazole moieties has been synthesised using simple and highly efficient reaction pathways.
Funahashi M, Guang Hu, Mary O’Neill, Stephen M. Kelly, Stuart P. Kitney, William Harrison   +5 more
core   +2 more sources

Uncovering the Origin of Efficiency Roll‐Off in TADF OLEDs

Advanced Functional Materials, EarlyView.
OLEDs based on thermally activated delayed fluorescent (TADF) materials often suffer from a severe drop in efficiency at high brightness levels. This work presents a technique to uncover the source of this efficiency drop, and quantifies the exciton‐exciton and exciton‐polaron annihilation processes responsible for efficiency losses in our TADF OLEDs ...
Liam G. King, Kou Yoshida, Arvydas Ruseckas, Ifor D. W. Samuel   +3 more
wiley   +1 more source

Multitarget drug design strategy in Alzheimer’s disease: focus on cholinergic transmission and amyloid-β aggregation [PDF]

, 2017
Background: Alzheimer pathogenesis has been associated with a network of processes working simultaneously and synergistically. Over time, much interest has been focused on cholinergic transmission and its mutual interconnections with other active players
Abu, Izuddin F., Andrisano, Vincenza, Bartolini, Manuela, Bergamini, Christian, Blockley, Alix, Bottegoni, Giovanni, Caporaso, Roberta, Cavalli, Andrea, Gotti, Cecilia, Mellor, Ian R., Minarini, Anna, Rosini, Michela, Simoni, Elena   +12 more
core   +2 more sources

Sulfonamido-derivatives of unsubstituted carbazoles as BACE1 inhibitors [PDF]

Bioorganic & Medicinal Chemistry Letters, 2017
A novel series of variously substituted N-[3-(9H-carbazol-9-yl)-2-hydroxypropyl]-arylsulfonamides has been synthesized and assayed for β-Secretase (BACE1) inhibitory activity. BACE1 is a widely recognized drug target for the prevention and treatment of Alzheimer's Disease (AD).
BERTINI, SIMONE, Ghilardi, Elisa, Asso, Valentina, MINUTOLO, FILIPPO, RAPPOSELLI, SIMONA, DIGIACOMO, MARIA, SACCOMANNI, GIUSEPPE, Salmaso, Veronica, Sturlese, Mattia, Moro, Stefano, MACCHIA, MARCO, MANERA, CLEMENTINA   +11 more
openaire   +3 more sources

Role of the Recombination Zone in Organic Light‐Emitting Devices

Advanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source