ArticleChemical science2020
Controlling ultralong room temperature phosphorescence in organic compounds with sulfur oxidation state.
Article in Chemical science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 45 citations in OpenAlex.
- Study on the Influence of Host-Guest Structure and Polymer Introduction on the Afterglow Properties of Doped Crystals.Molecules (Basel, Switzerland) · 2024Article
- Sulfur oxidation states manipulate excited state electronic configurations for constructing highly efficient organic type I photosensitizers.Chemical science · 2024Article
- Isoacridone dyes with parallel reactivity from both singlet and triplet excited states for biphotonic catalysis and upconversion.Chemical science · 2023Article
- Control of photoluminescence quantum yield and long-lived triplet emission lifetime in organic alloys.Chemical science · 2022Article
- Sulfur-bridged chromophores for photofunctional materials: using sulfur oxidation state to tune electronic and structural properties.Chemical science · 2022Review
- Halide-containing organic persistent luminescent materials for environmental sensing applications.Chemical science · 2022Review
- White Emissions Containing Room Temperature Phosphorescence from Different Excited States of a D-π-A Molecule Depending on the Aggregate States.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022Article
- Switching between TADF and RTP: anion-regulated photoluminescence in organic salts and co-crystals.Materials advances · 2021Article
- Room-Temperature Phosphorescent Co-Crystal Showing Direct White Light and Photo-Electric Conversion.Frontiers in chemistry · 2021Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sulfur oxidation state is used to tune organic room temperature phosphorescence (RTP) of symmetric sulfur-bridged carbazole dimers. The sulfide-bridged compound exhibits a factor of 3 enhancement of the phosphorescence efficiency, compared to the sulfoxide and sulfone-bridged analogs, despite sulfone bridges being commonly used in RTP materials. In order to investigate the origin of this enhancement, temperature dependent spectroscopy measurements and theoretical calculations are used. The RTP lifetimes are similar due to similar crystal packing modes. Computational studies reveal that the lone pairs on the sulfur atom have a profound impact on enhancing intersystem crossing rate through orbital mixing and screening, which we hypothesize is the dominant factor responsible for increasing the phosphorescence efficiency. The ability to tune the electronic state without altering crystal packing modes allows the isolation of these effects. This work provides a new perspective on the design principles of organic phosphorescent materials, going beyond the rules established for conjugated ketone/sulfone-based organic molecules.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.