ArticleThe journal of physical chemistry letters2021
The Critical Role of nπ* States in the Photophysics and Thermally Activated Delayed Fluorescence of Spiro Acridine-Anthracenone.
Article in The journal of physical chemistry letters, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 43 citations in OpenAlex.
- Hybridized Charge-Transfer Window within a Fully Conjugated Multi-Resonance Thermally Activated Delayed Fluorescence Framework for Ultrafast Reverse Intersystem Crossing and High-Efficiency in Deep-Blue Organic Light-Emitting Diodes.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Excitation-Dependent Quadruple-Level Emission from an Isolated Molecule for Dynamic Information Encryption.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Janus-Type Photophysics of Rotational Isomers in a Diphenylanthracene Dimer.Angewandte Chemie (International ed. in English) · 2025Article
- Modulation of delayed fluorescence pathways via rational molecular engineering.Nature communications · 2025Article
- Exploring the Versatile Uses of Triplet States: Working Principles, Limitations, and Recent Progress in Phosphorescence, TADF, and TTA.ACS applied optical materials · 2024Review
- The Golden Age of Thermally Activated Delayed Fluorescence Materials: Design and Exploitation.Chemical reviews · 2024Review
- Donor, Acceptor, and Molecular Charge Transfer Emission All in One Molecule.The journal of physical chemistry letters · 2023Article
- Aggregation-induced emission of matrix-free graphene quantum dots via selective edge functionalization of rotor molecules.Science advances · 2023Article
- A first principles examination of phosphorescence.RSC advances · 2022Article
- Laplace Transform Fitting as a Tool To Uncover Distributions of Reverse Intersystem Crossing Rates in TADF Systems.The journal of physical chemistry letters · 2022Article
- Prompt and Long-Lived Anti-Kasha Emission from Organic Dyes.Molecules (Basel, Switzerland) · 2021Review
- Vibrational Damping Reveals Vibronic Coupling in Thermally Activated Delayed Fluorescence Materials.Chemistry of materials : a publication of the American Chemical Society · 2021Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The molecular photophysics and thermally activated delayed fluorescence (TADF) in spiro compounds are distinct because of the rigid orthogonal C-C bridging bond between donor and acceptor. The photophysics is found to be highly complex, with unprecedented multiple anti-Kasha emissions from three different singlet states, two of which are one-photon forbidden. The TADF mechanism is critically controlled by local acceptor nπ* states; the singlet nπ* state undergoes rapid intersystem crossing populating an energetically close acceptor ππ* triplet state. The acceptor triplet nπ* state couples nonadiabatically to a CT triplet state mediating reverse intersystem crossing. When the nπ* and CT states are energetically close, TADF is greatly enhanced with rISC rate reaching 10
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