Air-Stable Ultrabright Inverted Organic Light-Emitting Devices with Metal Ion-Chelated Polymer Injection Layer

Here, this work presents an air-stable ultrabright inverted organic light-emitting device (OLED) by using zinc ion-chelated polyethylenimine (PEI) as electron injection layer. The zinc chelation is demonstrated to increase the conductivity of the PEI by three orders of magnitude and passivate the po...

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Autores principales: Liu, Shihao, Zang, Chunxiu, Zhang, Jiaming, Tian, Shuang, Wu, Yan, Shen, Dong, Zhang, Letian, Xie, Wenfa, Lee, Chun-Sing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Nature Singapore 2021
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Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8648931/
https://www.ncbi.nlm.nih.gov/pubmed/34870784
http://dx.doi.org/10.1007/s40820-021-00745-w
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author Liu, Shihao
Zang, Chunxiu
Zhang, Jiaming
Tian, Shuang
Wu, Yan
Shen, Dong
Zhang, Letian
Xie, Wenfa
Lee, Chun-Sing
author_facet Liu, Shihao
Zang, Chunxiu
Zhang, Jiaming
Tian, Shuang
Wu, Yan
Shen, Dong
Zhang, Letian
Xie, Wenfa
Lee, Chun-Sing
author_sort Liu, Shihao
collection PubMed
description Here, this work presents an air-stable ultrabright inverted organic light-emitting device (OLED) by using zinc ion-chelated polyethylenimine (PEI) as electron injection layer. The zinc chelation is demonstrated to increase the conductivity of the PEI by three orders of magnitude and passivate the polar amine groups. With these physicochemical properties, the inverted OLED shows a record-high external quantum efficiency of 10.0% at a high brightness of 45,610 cd m(−2) and can deliver a maximum brightness of 121,865 cd m(−2). Besides, the inverted OLED is also demonstrated to possess an excellent air stability (humidity, 35%) with a half-brightness operating time of 541 h @ 1000 cd m(−2) without any protection nor encapsulation. [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40820-021-00745-w.
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spelling pubmed-86489312021-12-22 Air-Stable Ultrabright Inverted Organic Light-Emitting Devices with Metal Ion-Chelated Polymer Injection Layer Liu, Shihao Zang, Chunxiu Zhang, Jiaming Tian, Shuang Wu, Yan Shen, Dong Zhang, Letian Xie, Wenfa Lee, Chun-Sing Nanomicro Lett Article Here, this work presents an air-stable ultrabright inverted organic light-emitting device (OLED) by using zinc ion-chelated polyethylenimine (PEI) as electron injection layer. The zinc chelation is demonstrated to increase the conductivity of the PEI by three orders of magnitude and passivate the polar amine groups. With these physicochemical properties, the inverted OLED shows a record-high external quantum efficiency of 10.0% at a high brightness of 45,610 cd m(−2) and can deliver a maximum brightness of 121,865 cd m(−2). Besides, the inverted OLED is also demonstrated to possess an excellent air stability (humidity, 35%) with a half-brightness operating time of 541 h @ 1000 cd m(−2) without any protection nor encapsulation. [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40820-021-00745-w. Springer Nature Singapore 2021-12-06 /pmc/articles/PMC8648931/ /pubmed/34870784 http://dx.doi.org/10.1007/s40820-021-00745-w Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Liu, Shihao
Zang, Chunxiu
Zhang, Jiaming
Tian, Shuang
Wu, Yan
Shen, Dong
Zhang, Letian
Xie, Wenfa
Lee, Chun-Sing
Air-Stable Ultrabright Inverted Organic Light-Emitting Devices with Metal Ion-Chelated Polymer Injection Layer
title Air-Stable Ultrabright Inverted Organic Light-Emitting Devices with Metal Ion-Chelated Polymer Injection Layer
title_full Air-Stable Ultrabright Inverted Organic Light-Emitting Devices with Metal Ion-Chelated Polymer Injection Layer
title_fullStr Air-Stable Ultrabright Inverted Organic Light-Emitting Devices with Metal Ion-Chelated Polymer Injection Layer
title_full_unstemmed Air-Stable Ultrabright Inverted Organic Light-Emitting Devices with Metal Ion-Chelated Polymer Injection Layer
title_short Air-Stable Ultrabright Inverted Organic Light-Emitting Devices with Metal Ion-Chelated Polymer Injection Layer
title_sort air-stable ultrabright inverted organic light-emitting devices with metal ion-chelated polymer injection layer
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8648931/
https://www.ncbi.nlm.nih.gov/pubmed/34870784
http://dx.doi.org/10.1007/s40820-021-00745-w
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