Jan 15, 2024 · There are several different mechanisms of emission, and the best known are fluorescence (FL), phosphorescence (PH), thermally activated delayed fluorescence (TADF), …

Apr 19, 2024 · An important distinguishing feature between delayed fluorescence originating from TADF or TTA is that, in the TTA mechanism, the DF intensity exhibits a characteristic …

Jun 19, 2021 · The efficiency roll-off in organic light-emitting diodes (OLEDs) based on thermally activated delayed fluorescence (TADF) is attributed to either singlet–triplet or triplet–triplet …

Mar 26, 2025 · Here, we demonstrate TADF and TTA in donor-acceptor phthalimide derivatives by employing triphenylamine (TPA) or phenyl carbazole (PhCz) as a donor.

Aug 1, 2021 · Time-dependent density functional theory (TDDFT) is a well-established tool to study S and T excited states of organic molecules.

Apr 22, 2024 · Metal-free multiple resonance thermally activated delayed fluorescence (MR-TADF) materials are ideal photosensitizers (PSs) apart from the drawback of high …

Feb 20, 2025 · We developed a new optical method to det. the rate of reverse intersystem crossing (krISC) in thermally activated delayed fluorescent (TADF) org. chromophores using …

Aug 15, 2023 · Herein, a temperature-dependent promotion relay of the triplet excitons from TADF to self-sensitized triplet − triplet annihilation up-conversion (TTA-UC) was demonstrated …

Dec 7, 2022 · Efficient visible-to-ultraviolet (UV) triplet–triplet annihilation upconversion (TTA-UC) with large anti-Stokes shift is highly promising for solar-powered and indoor applications.

Apr 19, 2024 · Thermally Activated Delayed Fluorescence (TADF), and 3. Triplet-Triplet Annihilation (TTA). In each section we unveil their working principles, highlight their vast range …