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Efficient and stable single-doped white OLEDs using a palladium-based phosphorescent excimer
A tetradentate Pd(ii) complex, Pd3O3, which exhibits highly efficient excimer emission is synthesized and characterized. Pd3O3 can achieve blue emission despite using phenyl-pyridine emissive ligands which have been a mainstay of stable green and red phosphorescent emitter designs, making Pd3O3 a go...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Royal Society of Chemistry
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5853771/ https://www.ncbi.nlm.nih.gov/pubmed/29568445 http://dx.doi.org/10.1039/c7sc02512b |
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author | Fleetham, Tyler Ji, Yunlong Huang, Liang Fleetham, Trenten S. Li, Jian |
author_facet | Fleetham, Tyler Ji, Yunlong Huang, Liang Fleetham, Trenten S. Li, Jian |
author_sort | Fleetham, Tyler |
collection | PubMed |
description | A tetradentate Pd(ii) complex, Pd3O3, which exhibits highly efficient excimer emission is synthesized and characterized. Pd3O3 can achieve blue emission despite using phenyl-pyridine emissive ligands which have been a mainstay of stable green and red phosphorescent emitter designs, making Pd3O3 a good candidate for stable blue or white OLEDs. Pd3O3 exhibits strong and efficient phosphorescent excimer emission expanding the excimer based white OLEDs beyond the sole class of Pt complexes. Devices of Pd3O3 demonstrate peak external quantum efficiencies as high as 24.2% and power efficiencies of 67.9 Lm per W for warm white devices. Furthermore, Pd3O3 devices in a carefully designed stable structure achieved a device operational lifetime of nearly 3000 h at 1000 cd m(–2) without any outcoupling enhancement while simultaneously achieving peak external quantum efficiencies of 27.3% and power efficiencies over 81 Lm per W. |
format | Online Article Text |
id | pubmed-5853771 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-58537712018-03-22 Efficient and stable single-doped white OLEDs using a palladium-based phosphorescent excimer Fleetham, Tyler Ji, Yunlong Huang, Liang Fleetham, Trenten S. Li, Jian Chem Sci Chemistry A tetradentate Pd(ii) complex, Pd3O3, which exhibits highly efficient excimer emission is synthesized and characterized. Pd3O3 can achieve blue emission despite using phenyl-pyridine emissive ligands which have been a mainstay of stable green and red phosphorescent emitter designs, making Pd3O3 a good candidate for stable blue or white OLEDs. Pd3O3 exhibits strong and efficient phosphorescent excimer emission expanding the excimer based white OLEDs beyond the sole class of Pt complexes. Devices of Pd3O3 demonstrate peak external quantum efficiencies as high as 24.2% and power efficiencies of 67.9 Lm per W for warm white devices. Furthermore, Pd3O3 devices in a carefully designed stable structure achieved a device operational lifetime of nearly 3000 h at 1000 cd m(–2) without any outcoupling enhancement while simultaneously achieving peak external quantum efficiencies of 27.3% and power efficiencies over 81 Lm per W. Royal Society of Chemistry 2017-12-01 2017-09-11 /pmc/articles/PMC5853771/ /pubmed/29568445 http://dx.doi.org/10.1039/c7sc02512b Text en This journal is © The Royal Society of Chemistry 2017 http://creativecommons.org/licenses/by/3.0/ This article is freely available. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0) |
spellingShingle | Chemistry Fleetham, Tyler Ji, Yunlong Huang, Liang Fleetham, Trenten S. Li, Jian Efficient and stable single-doped white OLEDs using a palladium-based phosphorescent excimer |
title | Efficient and stable single-doped white OLEDs using a palladium-based phosphorescent excimer
|
title_full | Efficient and stable single-doped white OLEDs using a palladium-based phosphorescent excimer
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title_fullStr | Efficient and stable single-doped white OLEDs using a palladium-based phosphorescent excimer
|
title_full_unstemmed | Efficient and stable single-doped white OLEDs using a palladium-based phosphorescent excimer
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title_short | Efficient and stable single-doped white OLEDs using a palladium-based phosphorescent excimer
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title_sort | efficient and stable single-doped white oleds using a palladium-based phosphorescent excimer |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5853771/ https://www.ncbi.nlm.nih.gov/pubmed/29568445 http://dx.doi.org/10.1039/c7sc02512b |
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