Flexible and tandem quantum-dot light-emitting diodes with individually addressable red/green/blue emission

Abstract Tandem quantum-dot light-emitting diodes (QLEDs) with multiple QLED elements vertically connected by the intermediate electrodes offer the advantages of high brightness and long lifetime. However, it is challenging to individually address each QLED element in conventional tandem structures....

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Autores principales:	Qiang Su, Heng Zhang, Shuming Chen
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/781de44e6e894db49a520176c2ebaaf2
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spelling	oai:doaj.org-article:781de44e6e894db49a520176c2ebaaf22021-12-02T14:02:52ZFlexible and tandem quantum-dot light-emitting diodes with individually addressable red/green/blue emission10.1038/s41528-021-00106-y2397-4621https://doaj.org/article/781de44e6e894db49a520176c2ebaaf22021-03-01T00:00:00Zhttps://doi.org/10.1038/s41528-021-00106-yhttps://doaj.org/toc/2397-4621Abstract Tandem quantum-dot light-emitting diodes (QLEDs) with multiple QLED elements vertically connected by the intermediate electrodes offer the advantages of high brightness and long lifetime. However, it is challenging to individually address each QLED element in conventional tandem structures. To address this challenge, here, transparent QLEDs built on flexible plastic substrates are developed as the building blocks for the tandem QLEDs. By vertically integrating a red, a green, and a blue transparent QLEDs with an ultraviolet glue, the resultant tandem QLED can emit separately controllable red/green/blue (R/G/B) emission with an external quantum efficiency (EQE) of 12.0%/8.5%/4.5%, respectively. Enabled by the transparent and extractable IZO electrodes, the QLED elements can also be connected in series or in parallel with an EQE of 24.8% or 8.2%, respectively. Our work provides a new implementation strategy for the realization of tandem QLEDs with individually addressable R/G/B emission for both display and lighting applications.Qiang SuHeng ZhangShuming ChenNature PortfolioarticleElectronicsTK7800-8360Materials of engineering and construction. Mechanics of materialsTA401-492ENnpj Flexible Electronics, Vol 5, Iss 1, Pp 1-5 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492 Qiang Su Heng Zhang Shuming Chen Flexible and tandem quantum-dot light-emitting diodes with individually addressable red/green/blue emission
description	Abstract Tandem quantum-dot light-emitting diodes (QLEDs) with multiple QLED elements vertically connected by the intermediate electrodes offer the advantages of high brightness and long lifetime. However, it is challenging to individually address each QLED element in conventional tandem structures. To address this challenge, here, transparent QLEDs built on flexible plastic substrates are developed as the building blocks for the tandem QLEDs. By vertically integrating a red, a green, and a blue transparent QLEDs with an ultraviolet glue, the resultant tandem QLED can emit separately controllable red/green/blue (R/G/B) emission with an external quantum efficiency (EQE) of 12.0%/8.5%/4.5%, respectively. Enabled by the transparent and extractable IZO electrodes, the QLED elements can also be connected in series or in parallel with an EQE of 24.8% or 8.2%, respectively. Our work provides a new implementation strategy for the realization of tandem QLEDs with individually addressable R/G/B emission for both display and lighting applications.
format	article
author	Qiang Su Heng Zhang Shuming Chen
author_facet	Qiang Su Heng Zhang Shuming Chen
author_sort	Qiang Su
title	Flexible and tandem quantum-dot light-emitting diodes with individually addressable red/green/blue emission
title_short	Flexible and tandem quantum-dot light-emitting diodes with individually addressable red/green/blue emission
title_full	Flexible and tandem quantum-dot light-emitting diodes with individually addressable red/green/blue emission
title_fullStr	Flexible and tandem quantum-dot light-emitting diodes with individually addressable red/green/blue emission
title_full_unstemmed	Flexible and tandem quantum-dot light-emitting diodes with individually addressable red/green/blue emission
title_sort	flexible and tandem quantum-dot light-emitting diodes with individually addressable red/green/blue emission
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/781de44e6e894db49a520176c2ebaaf2
work_keys_str_mv	AT qiangsu flexibleandtandemquantumdotlightemittingdiodeswithindividuallyaddressableredgreenblueemission AT hengzhang flexibleandtandemquantumdotlightemittingdiodeswithindividuallyaddressableredgreenblueemission AT shumingchen flexibleandtandemquantumdotlightemittingdiodeswithindividuallyaddressableredgreenblueemission
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Flexible and tandem quantum-dot light-emitting diodes with individually addressable red/green/blue emission

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