It Matters Where the Heavy Atom Is Placed: Optimizing the Spin–Orbital Coupling in Multiresonant TADF (MR‐TADF) Emitters and Its Impact on OLED Performance
Sign Up to like & getrecommendations! Published in 2025 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202506189
Abstract: This study explores the impact of the regioisomerism of a heavy chalcogen atom on the photophysical properties of multi‐resonant thermally activated delayed fluorescence (MR‐TADF) materials. Two pairs of isomeric MR‐TADF emitters containing different benzothienocarbazole moieties,… read more here.
Keywords: tadf emitters; spin orbital; orbital coupling; heavy atom ... See more keywords
Self-Assembly Induced Photosensitization of Long-Tailed Heavy-Atom-Free BODIPY Derivatives for Photodynamic Therapy.
Sign Up to like & getrecommendations! Published in 2023 at "Advanced healthcare materials"
DOI: 10.1002/adhm.202301022
Abstract: Type I photosensitizers (PSs) are a promising approach for photodynamic therapy (PDT) since they can generate radicals that are tolerant to hypoxia. Thus, the development of highly efficient type I PSs is essential. Self-assembly is… read more here.
Keywords: atom free; long tailed; self assembly; photodynamic therapy ... See more keywords
Highly Efficient Persistent Room-Temperature Phosphorescence from Heavy Atom-Free Molecules Triggered by Hidden Long Phosphorescent Antenna.
Sign Up to like & getrecommendations! Published in 2020 at "Advanced materials"
DOI: 10.1002/adma.202001348
Abstract: Persistent (lifetime > 100 ms) room-temperature phosphorescence (pRTP) is important for state-of-the-art security and bioimaging applications. An unclear relationship between chromophores and physical parameters relating to pRTP has prevented obtaining an RTP yield of over… read more here.
Keywords: heavy atom; room temperature; temperature phosphorescence; atom free ... See more keywords
Drastic Mechanochromic Luminescence Through Fluorescence–Phosphorescence Switching in a Heavy‐Atom‐Free Organoboron Compound
Sign Up to like & getrecommendations! Published in 2025 at "Advanced Optical Materials"
DOI: 10.1002/adom.202500633
Abstract: Fluorescence and phosphorescence are emissions from molecules in the lowest excited singlet state (S1) and the lowest triplet state (T1), respectively. Generally, as the S1 and T1 energy levels are different, the fluorescence and phosphorescence… read more here.
Keywords: heavy atom; phosphorescence; fluorescence; mechanochromic luminescence ... See more keywords
Heavy-Atom-Free Room-Temperature Phosphorescent Rylene Imide for High-Performing Organic Photovoltaics.
Sign Up to like & getrecommendations! Published in 2021 at "Advanced science"
DOI: 10.1002/advs.202103975
Abstract: Organic phosphorescence, originating from triplet excitons, has potential for the development of new generation of organic optoelectronic materials. Herein, two heavy-atom-free room-temperature phosphorescent (RTP) electron acceptors with inherent long lifetime triplet exctions are first reported.… read more here.
Keywords: temperature phosphorescent; atom free; heavy atom; room temperature ... See more keywords
An Approach to Developing Cyanines with Upconverted Photosensitive Efficiency Enhancement for Highly Efficient NIR Tumor Phototheranostics
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Science"
DOI: 10.1002/advs.202202885
Abstract: Upconverted reactive oxygen species (ROS) photosensitization with one‐photon excitation mode is a promising tactic to elongate the excitation wavelengths of photosensitive dyes to near‐infrared (NIR) light region without the requirement of coherent high‐intensity light sources.… read more here.
Keywords: cyanines upconverted; upconverted photosensitive; developing cyanines; efficiency ... See more keywords
Helical BODIPY Dyes as Heavy‐Atom‐Free Triplet Photosensitizers for Photodynamic Therapy of Cancer
Sign Up to like & getrecommendations! Published in 2024 at "ChemMedChem"
DOI: 10.1002/cmdc.202400041
Abstract: Despite of having many advantages over the popular cancer therapies, photodynamic therapy still is not widely acceptable for clinical applications. Scarcity of efficient triplet photosensitizers (PSs) is one of the main bottlenecks for this. Although… read more here.
Keywords: cancer; triplet; bodipys; atom free ... See more keywords
Preparation of AIE Functional Single-chain Polymer Nanoparticles and Its Application in H2 O2 Detection through Intermolecular Heavy-atom Effect.
Sign Up to like & getrecommendations! Published in 2022 at "Macromolecular rapid communications"
DOI: 10.1002/marc.202200156
Abstract: Single-chain polymer nanoparticles (SCNPs) are soft matter constructed by intrachain crosslink, with promising prospects in detection and catalysis. Herein, the fluorescent core (SCNPs) with aggregation-induced emission (AIE) was prepared, applying for H2 O2 detection through… read more here.
Keywords: scnps; detection; heavy atom; atom effect ... See more keywords
On the heavy atom on light atom relativistic effect in the NMR shielding constants of phosphine tellurides
Sign Up to like & getrecommendations! Published in 2019 at "Magnetic Resonance in Chemistry"
DOI: 10.1002/mrc.4889
Abstract: The relativistic HALA effect has been shown to depend on the spatial deformation of the lone electron pairs of a heavy atom, as demonstrated for alkyl and alkene phosphine tellurides. It was found that HALA… read more here.
Keywords: atom light; heavy atom; effect; phosphine tellurides ... See more keywords
Heavy-atom effect promotes multi-resonance thermally activated delayed fluorescence
Sign Up to like & getrecommendations! Published in 2021 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2021.131169
Abstract: Abstract As one type of latest emitters with simultaneous high efficiency and color-purity, the development of multi-resonance thermally activated delayed fluorescence (MR-TADF) materials represents an important advancement for organic light-emitting diodes (OLEDs). We herein present… read more here.
Keywords: thermally activated; heavy atom; resonance thermally; activated delayed ... See more keywords
Synergistic effects of photoinduced electron transfer and heavy atom effect based on BODIPY for efficient triplet photosensitizers
Sign Up to like & getrecommendations! Published in 2021 at "Dyes and Pigments"
DOI: 10.1016/j.dyepig.2021.109662
Abstract: Abstract Achieving a long triplet lifetime and a high triplet quantum yield for efficient triplet sensitizers are crucial for commercializing triplet–triplet annihilation–upconversion (TTA-UC). Although many donor-acceptor (D-A) or heavy atom-based triplet sensitizers have been extensively… read more here.
Keywords: efficient triplet; triplet; heavy atom; photoinduced electron ... See more keywords