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Novel Polycyclic Fused Amide Derivatives: Properties and Applications for Sky-blue Electroluminescent Devices
Aromatic imide derivatives play a critical role in boosting the electroluminescent (EL) performance of organic light-emitting diodes (OLEDs). However, the majority of aromatic imide-based materials are limited to long wavelength emission OLEDs rather than blue emissions due to their strong electron-...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9414544/ https://www.ncbi.nlm.nih.gov/pubmed/36014422 http://dx.doi.org/10.3390/molecules27165181 |
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author | Yang, Guo-Xi Liu, Deng-Hui Jiang, Si-Min Yang, Zhi-Hai Chen, Zi-Jian Qiu, Wei-Dong Gan, Yi-Yang Liu, Kun-Kun Li, De-Li Su, Shi-Jian |
author_facet | Yang, Guo-Xi Liu, Deng-Hui Jiang, Si-Min Yang, Zhi-Hai Chen, Zi-Jian Qiu, Wei-Dong Gan, Yi-Yang Liu, Kun-Kun Li, De-Li Su, Shi-Jian |
author_sort | Yang, Guo-Xi |
collection | PubMed |
description | Aromatic imide derivatives play a critical role in boosting the electroluminescent (EL) performance of organic light-emitting diodes (OLEDs). However, the majority of aromatic imide-based materials are limited to long wavelength emission OLEDs rather than blue emissions due to their strong electron-withdrawing characteristics. Herein, two novel polycyclic fused amide units were reported as electron acceptor to be combined with either a tetramethylcarbazole or acridine donor via a phenyl linker to generate four conventional fluorescence blue emitters of BBI-4MeCz, BBI-DMAC, BSQ-4MeCz and BSQ-DMAC for the first time. BSQ-4MeCz and BSQ-DMAC based on a BSQ unit exhibited higher thermal stability and photoluminescence quantum yields than BBI-4MeCz and BBI-DMAC based on a BBI unit due to their more planar acceptor structure. The intermolecular interactions that exist in the BSQ series materials effectively inhibit the molecular rotation and configuration relaxation, and thus allow for blue-shifted emissions. Blue OLED devices were constructed with the developed materials as emitters, and the effects of both the structure of the polycyclic fused amide acceptor and the electron donor on the EL performance were clarified. Consequently, a sky-blue OLED device based on BSQ-DMAC was created, with a high maximum external quantum efficiency of 4.94% and a maximum luminance of 7761 cd m(−2). |
format | Online Article Text |
id | pubmed-9414544 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-94145442022-08-27 Novel Polycyclic Fused Amide Derivatives: Properties and Applications for Sky-blue Electroluminescent Devices Yang, Guo-Xi Liu, Deng-Hui Jiang, Si-Min Yang, Zhi-Hai Chen, Zi-Jian Qiu, Wei-Dong Gan, Yi-Yang Liu, Kun-Kun Li, De-Li Su, Shi-Jian Molecules Article Aromatic imide derivatives play a critical role in boosting the electroluminescent (EL) performance of organic light-emitting diodes (OLEDs). However, the majority of aromatic imide-based materials are limited to long wavelength emission OLEDs rather than blue emissions due to their strong electron-withdrawing characteristics. Herein, two novel polycyclic fused amide units were reported as electron acceptor to be combined with either a tetramethylcarbazole or acridine donor via a phenyl linker to generate four conventional fluorescence blue emitters of BBI-4MeCz, BBI-DMAC, BSQ-4MeCz and BSQ-DMAC for the first time. BSQ-4MeCz and BSQ-DMAC based on a BSQ unit exhibited higher thermal stability and photoluminescence quantum yields than BBI-4MeCz and BBI-DMAC based on a BBI unit due to their more planar acceptor structure. The intermolecular interactions that exist in the BSQ series materials effectively inhibit the molecular rotation and configuration relaxation, and thus allow for blue-shifted emissions. Blue OLED devices were constructed with the developed materials as emitters, and the effects of both the structure of the polycyclic fused amide acceptor and the electron donor on the EL performance were clarified. Consequently, a sky-blue OLED device based on BSQ-DMAC was created, with a high maximum external quantum efficiency of 4.94% and a maximum luminance of 7761 cd m(−2). MDPI 2022-08-14 /pmc/articles/PMC9414544/ /pubmed/36014422 http://dx.doi.org/10.3390/molecules27165181 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yang, Guo-Xi Liu, Deng-Hui Jiang, Si-Min Yang, Zhi-Hai Chen, Zi-Jian Qiu, Wei-Dong Gan, Yi-Yang Liu, Kun-Kun Li, De-Li Su, Shi-Jian Novel Polycyclic Fused Amide Derivatives: Properties and Applications for Sky-blue Electroluminescent Devices |
title | Novel Polycyclic Fused Amide Derivatives: Properties and Applications for Sky-blue Electroluminescent Devices |
title_full | Novel Polycyclic Fused Amide Derivatives: Properties and Applications for Sky-blue Electroluminescent Devices |
title_fullStr | Novel Polycyclic Fused Amide Derivatives: Properties and Applications for Sky-blue Electroluminescent Devices |
title_full_unstemmed | Novel Polycyclic Fused Amide Derivatives: Properties and Applications for Sky-blue Electroluminescent Devices |
title_short | Novel Polycyclic Fused Amide Derivatives: Properties and Applications for Sky-blue Electroluminescent Devices |
title_sort | novel polycyclic fused amide derivatives: properties and applications for sky-blue electroluminescent devices |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9414544/ https://www.ncbi.nlm.nih.gov/pubmed/36014422 http://dx.doi.org/10.3390/molecules27165181 |
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