Results 81 to 90 of about 17,940 (246)

Lanthanoid β-triketonates: a new class of highly efficient NIR emitters for bright NIR-OLEDs

, 2014
The reaction of hydrated YbCl3 with potassium tribenzoylmethanide yields a new bimetallic tetranuclear Yb3+/K+ assembly. This species not only possesses the longest excited state lifetime and quantum yield reported for the Yb3+ diketonate family but is ...
S. Stagni (23305756), J. Malicka (23382997), Mark Ogden (9582996), M. Cocchi (7615745), G. Hanan (23365390), Massimiliano Massi (817332), Brodie Reid (23330143)   +6 more
core  

Intramolecular Direct Arylation Enables Access to Diverse Photophysical Properties for π‐Expanded 1,4‐Dihydropyrrolo[3,2‐b]pyrroles

Advanced Optical Materials, EarlyView.
The unique combination of photophysical properties for π‐expanded 1,4‐dihydropyrrolo[3,2‐b]pyrroles (DHPPs) can be reached via a new synthetic approach. π‐Expanded DHPPs possessing electron‐withdrawing functionalities with emission reaching 700 nm, as well as large double helical systems were prepared and investigated.
Damian Kusy, Krzysztof Górski, Carmelo Naim, Francesco Bertocchi, Nicolas Vanthuyne, Krzysztof Noworyta, Bartosz Szymański, Radosław Kamiński, Francesca Terenziani, Denis Jacquemin, Daniel T. Gryko   +10 more
wiley   +1 more source

Highly Luminescent Dinuclear Platinum(II) Complexes Incorporating Bis-Cyclometallating Pyrazine-Based Ligands: A Versatile Approach to Efficient Red Phosphors [PDF]

, 2013
A series of luminescent dinuclear platinum(II) complexes incorporating diphenylpyrazine-based bridging ligands ((LH2)-H-n) has been prepared. Both 2,5-diphenylpyrazine ((LH2)-H-2) and 2,3-diphenylpyrazine ((LH2)-H-3) are able to undergo cyclometalation ...
Durrant, Marcus, Durrant, Marcus, C, Kozhevnikov, Valery, Whittle, Victoria, L, Culham, Stacey, Whittle, Victoria, Williams, Gareth, Williams, J. A. Gareth, Lanoe, Pierre-Henri, Kozhevnikov, Valery, N   +9 more
core   +1 more source

Large area p-i-n type OLEDs for lighting

, 2022
S.1030-1033An OLED for lighting applications was succesfully demonstrated on a 150mm x 150mm substrate with ITO anode. Additionally, ZnO:Al (ZAO) as an alternative transparent electrode for OLEDs was fabricated and applied to highly efficient p-i-n type ...
Amelung, J., Fehse, Karsten, Löffler, F., Walzer, K., Törker, Michael, Luber, C., Huang, Q., May, C., Eritt, Michael, Tomita, Y., Leo, K.   +10 more
core   +1 more source

Donor‐Strength‐Driven Evolution From Charge‐Transfer to Polymethine Excited States in CurcBF2 Derivatives

Advanced Optical Materials, EarlyView.
Donor strength governs the excited‐state character and TADF behavior of donor‐acceptor‐donor borondifluoride curcuminoid derivatives. Increasing donor strength drives a transition from charge‐transfer TADF to a zwitterionic polymethine structure with predominantly local excited‐state emission and suppressed TADF.
Anthony D'Aléo, Guillaume Michaluszko, Amandine Coron, Dae‐Hyeon Kim, Alban de Gary, Danillo Valverde, Elena Zaborova, Emilie Couzigné, Lorry Engel, Loïc Mager, Gabriel Canard, Chihaya Adachi, Yoann Olivier, Jean‐Charles Ribierre   +13 more
wiley   +1 more source

Cobalt‐Catalyzed Asymmetric Construction of Boron Stereocenters With C–N Axial Chirality

Advanced Science, EarlyView.
A cobalt/Salox‐catalyzed one‐pot annulation enables enantioselective formation of B‐stereogenic centers and C─N axial chirality via C─H/N─H annulation, affording diverse fluorescent products with high stereocontrol and optoelectronic potential. ABSTRACT The efficient construction of boron stereogenic centers alongside axial chirality remains a ...
Subramani Kumaran, Harihara Subramanian Ravi Sankar, Pritam Maity, J. Richard Premkumar, Abir Das, Basker Sundararaju   +5 more
wiley   +1 more source

Recent progress of green thermally activated delayed fluorescent emitters

Journal of Information Display, 2017
Pure organic-based thermally activated delayed fluorescent (TADF) emitters have been studied for the last five years because of their potential as high-efficiency emitters comparable to phosphorescent emitters.
Yirang Im, Jun Yeob Lee
doaj   +1 more source

Classroom Experiments and Teaching Materials on OLEDs with Semiconducting Polymers

Educación Química, 2013
Experimentos en el salón de clase y materiales de enseñanza sobre OLEDs con polímeros semiconductores Organic semiconductors are a new class of materials representing an innovative field of scientific research.
Banerji Amitabh, Michael W Tausch, Ullrich Scherf   +2 more
doaj   +1 more source

Thin-film transistor-driven vertically stacked full-color organic light-emitting diodes for high-resolution active-matrix displays

Nature Communications, 2020
To realize organic light-emitting diodes (OLEDs) with improved resolution for display applications, a method for achieving high yield device fabrication is needed.
Sukyung Choi, Chan-mo Kang, Chun-Won Byun, Hyunsu Cho, Byoung-Hwa Kwon, Jun-Han Han, Jong-Heon Yang, Jin-Wook Shin, Chi-Sun Hwang, Nam Sung Cho, Kang Me Lee, Hee-Ok Kim, Eungjun Kim, Seunghyup Yoo, Hyunkoo Lee   +14 more
doaj   +1 more source

Neuromorphic Optical Tracking and Imaging of Randomly Moving Targets Through Dynamic Dense Scattering Media

Advanced Science, EarlyView.
Vision begins not with images but with change: the retina fires only when something moves, handing the brain a stream of spikes. A neuromorphic imaging system adopts the same strategy—an event sensor that sees like the retina, a spiking network that thinks like the brain—to track and reconstruct fully randomly moving targets through tissue (phantom ...
Ning Zhang, Arto Nurmikko
wiley   +1 more source