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Sterically wrapping of multi-resonant fluorophores: an effective strategy to suppress concentration quenching and spectral broadening
Multiple resonance (MR) emitters are promising for the next-generation wide color gamut organic light-emitting diodes (OLEDs) with narrowband emissions; however, they still face intractable challenges such as concentration-induced emission quenching, exciton annihilation, and spectral broadening. In...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10196060/ https://www.ncbi.nlm.nih.gov/pubmed/37214480 http://dx.doi.org/10.3389/fchem.2023.1198404 |
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author | Xiaofeng, Luo Dongdong, Zhang Lian, Duan Yuewei, Zhang |
author_facet | Xiaofeng, Luo Dongdong, Zhang Lian, Duan Yuewei, Zhang |
author_sort | Xiaofeng, Luo |
collection | PubMed |
description | Multiple resonance (MR) emitters are promising for the next-generation wide color gamut organic light-emitting diodes (OLEDs) with narrowband emissions; however, they still face intractable challenges such as concentration-induced emission quenching, exciton annihilation, and spectral broadening. In this concept, we focus on an advanced molecular design strategy called “sterically wrapping of MR fluorophores” to address the above issues. By isolating the MR emission core using bulky substituents, intermolecular interactions can be significantly suppressed to eliminate the formation of unfavorable species. Consequently, using the newly designed emitters, optimized MR-OLEDs can achieve high external quantum efficiencies of >40% while maintaining extremely small full width at half maxima (FWHMs) of <25 nm over a wide range of concentrations (1–20 wt%). This strategy may shed light on the design of efficient MR emitters, which provides more room for tuning the dopant concentrations under the premise of high-efficiencies and small FWHMs, accelerating the practical application of MR-OLEDs. |
format | Online Article Text |
id | pubmed-10196060 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-101960602023-05-20 Sterically wrapping of multi-resonant fluorophores: an effective strategy to suppress concentration quenching and spectral broadening Xiaofeng, Luo Dongdong, Zhang Lian, Duan Yuewei, Zhang Front Chem Chemistry Multiple resonance (MR) emitters are promising for the next-generation wide color gamut organic light-emitting diodes (OLEDs) with narrowband emissions; however, they still face intractable challenges such as concentration-induced emission quenching, exciton annihilation, and spectral broadening. In this concept, we focus on an advanced molecular design strategy called “sterically wrapping of MR fluorophores” to address the above issues. By isolating the MR emission core using bulky substituents, intermolecular interactions can be significantly suppressed to eliminate the formation of unfavorable species. Consequently, using the newly designed emitters, optimized MR-OLEDs can achieve high external quantum efficiencies of >40% while maintaining extremely small full width at half maxima (FWHMs) of <25 nm over a wide range of concentrations (1–20 wt%). This strategy may shed light on the design of efficient MR emitters, which provides more room for tuning the dopant concentrations under the premise of high-efficiencies and small FWHMs, accelerating the practical application of MR-OLEDs. Frontiers Media S.A. 2023-05-05 /pmc/articles/PMC10196060/ /pubmed/37214480 http://dx.doi.org/10.3389/fchem.2023.1198404 Text en Copyright © 2023 Xiaofeng, Dongdong, Lian and Yuewei. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Xiaofeng, Luo Dongdong, Zhang Lian, Duan Yuewei, Zhang Sterically wrapping of multi-resonant fluorophores: an effective strategy to suppress concentration quenching and spectral broadening |
title | Sterically wrapping of multi-resonant fluorophores: an effective strategy to suppress concentration quenching and spectral broadening |
title_full | Sterically wrapping of multi-resonant fluorophores: an effective strategy to suppress concentration quenching and spectral broadening |
title_fullStr | Sterically wrapping of multi-resonant fluorophores: an effective strategy to suppress concentration quenching and spectral broadening |
title_full_unstemmed | Sterically wrapping of multi-resonant fluorophores: an effective strategy to suppress concentration quenching and spectral broadening |
title_short | Sterically wrapping of multi-resonant fluorophores: an effective strategy to suppress concentration quenching and spectral broadening |
title_sort | sterically wrapping of multi-resonant fluorophores: an effective strategy to suppress concentration quenching and spectral broadening |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10196060/ https://www.ncbi.nlm.nih.gov/pubmed/37214480 http://dx.doi.org/10.3389/fchem.2023.1198404 |
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