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High efficiency and stability of ink-jet printed quantum dot light emitting diodes

Xiang, Chaoyu ; Wu, Longjia ; Lu, Zizhe ; Li, Menglin ; Wen, Yanwei ; Yang, Yixing ; Liu, Wenyong ; Zhang, Ting ; Cao, Weiran ; Tsang, Sai-Wing ; Shan, Bin ; Yan, Xiaolin ; Qian, Lei

Nature communications, 2020-04, Vol.11 (1), p.1646-1646, Article 1646 [Periódico revisado por pares]

England: Nature Publishing Group

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Título:
High efficiency and stability of ink-jet printed quantum dot light emitting diodes
Autor: Xiang, Chaoyu ; Wu, Longjia ; Lu, Zizhe ; Li, Menglin ; Wen, Yanwei ; Yang, Yixing ; Liu, Wenyong ; Zhang, Ting ; Cao, Weiran ; Tsang, Sai-Wing ; Shan, Bin ; Yan, Xiaolin ; Qian, Lei
Assuntos: Efficiency ; Electrons ; Exchanging ; Inkjet printing ; Ligands ; Light emitting diodes ; Liquid phases ; Mass production ; Printing ; Quantum dots ; Quantum efficiency
É parte de: Nature communications, 2020-04, Vol.11 (1), p.1646-1646, Article 1646
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: The low efficiency and fast degradation of devices from ink-jet printing process hinders the application of quantum dot light emitting diodes on next generation displays. Passivating the trap states caused by both anion and cation under-coordinated sites on the quantum dot surface with proper ligands for ink-jet printing processing reminds a problem. Here we show, by adapting the idea of dual ionic passivation of quantum dots, ink-jet printed quantum dot light emitting diodes with an external quantum efficiency over 16% and half lifetime of more than 1,721,000 hours were reported for the first time. The liquid phase exchange of ligands fulfills the requirements of ink-jet printing processing for possible mass production. And the performance from ink-jet printed quantum dot light emitting diodes truly opens the gate of quantum dot light emitting diode application for industry.
Editor: England: Nature Publishing Group
Idioma: Inglês

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High efficiency and stability of ink-jet printed quantum dot light emitting diodes

Xiang, Chaoyu ; Wu, Longjia ; Lu, Zizhe ; Li, Menglin ; Wen, Yanwei ; Yang, Yixing ; Liu, Wenyong ; Zhang, Ting ; Cao, Weiran ; Tsang, Sai-Wing ; Shan, Bin ; Yan, Xiaolin ; Qian, Lei

England: Nature Publishing Group

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