ArticleChemical science2023
Isomeric thermally activated delayed fluorescence emitters for highly efficient organic light-emitting diodes.
Article in Chemical science, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 25 citations in OpenAlex.
- Thermal Curing-Enhanced Circularly Polarized Phosphorescence.Molecules (Basel, Switzerland) · 2026Article
- Modulating the Singlet-Triplet Energy Gap With Regio-Specific Substitution on Dibenzo[a,c]phenazine to Realize Red TADF and Their OLEDs.Chemistry, an Asian journal · 2026Article
- Ultrafast photophysics of an orange-red thermally activated delayed fluorescence emitter: the role of external structural restraint.Chemical science · 2024Article
- Engineering TADF, mechanochromism, and second harmonic up-conversion properties in regioisomeric substitution space.Chemical science · 2023Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The isomeric strategy is an important design concept in molecular design that has a non-negligible influence on molecular properties. Herein, two isomeric thermally activated delayed fluorescence (TADF) emitters (NTPZ and TNPZ) are constructed with the same skeleton consisting of an electron donor and electron acceptor but different connection sites. Systematic investigations show that NTPZ exhibits a small energy gap, large up-conversion efficiency, low non-radiative decay, and high photoluminescence quantum yield. Further theoretical simulations reveal that the excited molecular vibrations play a key role in regulating the non-radiative decays of the isomers. Therefore, an NTPZ based OLED achieves better electroluminescence performances, such as a higher external quantum efficiency of 27.5% compared to a TNPZ based OLED (18.3%). This isomeric strategy not only provides an opportunity to deeply understand the relationship between substituent locations and molecular properties, but also affords a simple and effective strategy to enrich TADF materials.
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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.