Results 151 to 160 of about 1,915,191 (239)

Strategies for Enhancing Efficiency and Operational Stability in Green Phosphorescence‐Sensitized Fluorescence (PSF) Organic Light‐Emitting Diode (OLED) Technology

Small, Volume 22, Issue 55, 1 October 2026.
Efficiency and stability of PSF OLEDs can be obtained by improving the terminal emitters (TE's) extinction coefficient (ε) and a large spectral overlap (J) with PS emission, combined with a dual‐channel energy transfer process, with a high T1 exciplex host system to suppress the back energy transfer (BET) from PS to the host and a high intrinsic stable
Odugu Pavan Kumar, Nisha Vergineya S, Meghana Tirupati, Aradhya Rajput, Jang Hyuk Kwon   +4 more
wiley   +1 more source

A Blue Emissive Heavy Atom‐Free Multiresonant Thermally Activated Delayed Fluorescent Emitter Shows Ultra‐Fast Reverse Intersystem Crossing

Angewandte Chemie, Volume 138, Issue 38, 14 September 2026.
The extended π‐system and low‐lying n‐π∗ transition endow DDOBDiKTa with a synergistic combination of strong spin‐orbit coupling, small reorganization energy and small ΔEST, enabling this blue boron‐nitrogen‐carbonyl hybrid emitter to achieve a fast kRISC of 6.34 × 106 s−1 together with OLEDs showing small efficiency roll‐off, with EQEmax/EQE10000 of ...
Wenrui Wang, Hassan Hafeez, Sen Wu, Aidan P. McKay, David B. Cordes, Ifor D. W. Samuel, Eli Zysman‐Colman   +6 more
wiley   +2 more sources

Asymmetric Diphosphane Dioxides With A–π–A–π’–D Scaffolds for High‐Purity Deep‐Blue Luminescence

Chemistry – A European Journal, Volume 32, Issue 36, 24 September 2026.
Diphosphane dioxide‐based luminophores with donor–π–acceptor– π’–acceptor scaffold enable efficient deep‐blue emission from tunable charge‐transfer states affording high photoluminescence up to 95%. OLEDs reach EQE 4.9%, aided by triplet–triplet annihilation, highlighting a practical route to high‐performance blue emitters.
Eetu Hakkarainen, Zong‐Ying Liu, Jhon Sebastian Oviedo Ortiz, Nicolas Vanthuyne, Jeanne Crassous, Ondřej Mrózek, Fabien B. L. Cougnon, Wen‐Yi Hung, Pi‐Tai Chou, Igor O. Koshevoy, Andrey Belyaev   +10 more
wiley   +1 more source

Temperature dependency of energy shift of excitonic states in a donor–acceptor type TADF molecule

Nature Communications
In recent years, thermally activated delayed fluorescence (TADF) has attracted intense attention owing to its straightforward application to high-efficiency organic light-emitting diodes.
Youichi Tsuchiya, Keito Mizukoshi, Masaki Saigo, Tomohiro Ryu, Keiko Kusuhara, Kiyoshi Miyata, Ken Onda, Chihaya Adachi   +7 more
doaj   +1 more source

Synthesis and Optical Properties of Diboron Complexes of 1,4‐Anthraquinone Derivatives

Chemistry – A European Journal, Volume 32, Issue 34, 11 September 2026.
1,4‐Diboron complexes exhibit near‐infrared fluorescence, in contrast to non‐emissive 1,5‐diboron analogues. Fluorescence quantum yields decrease with increasing electron‐donating substituents, attributed to enhanced nonradiative decay via intramolecular PeT.
Yasuhiro Kubota, Ayumi Ogasawara, Ayato Hakamada, Naoya Suzuki, Masayasu Taki, Shota Mizuno, Toshiyasu Inuzuka, Kazumasa Funabiki, Chie Yamada‐Kubota, Miho Kuwahara, Tetsuya Hara   +10 more
wiley   +1 more source

Reactivity of organic photocatalysts displaying thermally activated delayed fluorescence (TADF): rationalizing unexpected differences between rates of quenching of the lowest singlet and triplet states. [PDF]

Chem Sci
Fina F, Bellatreccia C, Wu X, Cozzi PG, Troisi A, Vinogradov S, Ceroni P.   +6 more
europepmc   +1 more source

Importance of Selective Quenching of the Triplet Excited State of Thermally Activated Delayed Fluorescence (TADF) Photosensitizers in Redox-Photosensitized Reactions: Case Studies on Photocatalytic CO₂ Reduction. [PDF]

J Am Chem Soc
Tamaki Y, Kamogawa K, Inoue R, Ceroni P, Ishitani O.   +4 more
europepmc   +1 more source

Study of the thermally-activated delayed fluorescence (TADF) mechanism of phenothiazine-dibenzothiophene-<i>S</i>,<i>S</i>-dioxide electron donor-acceptor dyads using steady-state and time-resolved optical and electron paramagnetic resonance spectroscopies. [PDF]

Chem Sci
Pei Y, Sukhanov AA, Chen X, Sambucari G, Bussotti L, Liu X, Zhao J, Li Y, Huo Y, Voronkova VK, Guo H, Di Donato M.   +11 more
europepmc   +1 more source

How could ratiometric thermometry with thermally activated delayed fluorescent (TADF) emitters practically work?

Physical Chemistry Chemical Physics
Luminescence thermometry with TADF emitters is only scarcely explored. In this work, photophysical conditions and recommendable read-out strategies for the application of TADF emitters in this application area will be motivated.
openaire   +2 more sources

Motivation on Intramolecular Through-Space Charge Transfer for the Realization of Thermally Activated Delayed Fluorescence (TADF)-Thermally Stimulated Delayed Phosphorescence (TSDP) in C^C^N Gold(III) Complexes and Their Applications in Organic Light-Emitting Devices. [PDF]

J Am Chem Soc
Li P, Chen Z, Leung MY, Lai SL, Cheng SC, Kwok WK, Ko CC, Chan MY, Yam VW.   +8 more
europepmc   +1 more source