Top-emitting quantum dots light-emitting devices employing microcontact printing with electricfield-independent emission

Recent breakthroughs in quantum dot light-emitting devices (QD-LEDs) show their promise in the development of next-generation displays. However, the QD-LED with conventional ITO-based bottom emission structure is difficult to realize the high aperture ratio, electricfield-independent emission and fl...

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Detalles Bibliográficos
Autores principales: Liu, Shihao, Liu, Wenbo, Ji, Wenyu, Yu, Jing, Zhang, Wei, Zhang, Letian, Xie, Wenfa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4773764/
https://www.ncbi.nlm.nih.gov/pubmed/26932521
http://dx.doi.org/10.1038/srep22530
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author Liu, Shihao
Liu, Wenbo
Ji, Wenyu
Yu, Jing
Zhang, Wei
Zhang, Letian
Xie, Wenfa
author_facet Liu, Shihao
Liu, Wenbo
Ji, Wenyu
Yu, Jing
Zhang, Wei
Zhang, Letian
Xie, Wenfa
author_sort Liu, Shihao
collection PubMed
description Recent breakthroughs in quantum dot light-emitting devices (QD-LEDs) show their promise in the development of next-generation displays. However, the QD-LED with conventional ITO-based bottom emission structure is difficult to realize the high aperture ratio, electricfield-independent emission and flexible full-color displays. Hence, we demonstrate top-emitting QD-LEDs with dry microcontact printing quantum dot films. The top-emitting structure is proved to be able to accelerate the excitons radiative transition rate, then contributing to stable electroluminescent efficiency with a very low roll-off, and preventing spectra from shifting and broadening with the electric field increases. The results suggest potential routes towards creating high aperture ratio, wide color gamut, color-stable and flexible QD-LED displays.
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spelling pubmed-47737642016-03-07 Top-emitting quantum dots light-emitting devices employing microcontact printing with electricfield-independent emission Liu, Shihao Liu, Wenbo Ji, Wenyu Yu, Jing Zhang, Wei Zhang, Letian Xie, Wenfa Sci Rep Article Recent breakthroughs in quantum dot light-emitting devices (QD-LEDs) show their promise in the development of next-generation displays. However, the QD-LED with conventional ITO-based bottom emission structure is difficult to realize the high aperture ratio, electricfield-independent emission and flexible full-color displays. Hence, we demonstrate top-emitting QD-LEDs with dry microcontact printing quantum dot films. The top-emitting structure is proved to be able to accelerate the excitons radiative transition rate, then contributing to stable electroluminescent efficiency with a very low roll-off, and preventing spectra from shifting and broadening with the electric field increases. The results suggest potential routes towards creating high aperture ratio, wide color gamut, color-stable and flexible QD-LED displays. Nature Publishing Group 2016-03-02 /pmc/articles/PMC4773764/ /pubmed/26932521 http://dx.doi.org/10.1038/srep22530 Text en Copyright © 2016, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Liu, Shihao
Liu, Wenbo
Ji, Wenyu
Yu, Jing
Zhang, Wei
Zhang, Letian
Xie, Wenfa
Top-emitting quantum dots light-emitting devices employing microcontact printing with electricfield-independent emission
title Top-emitting quantum dots light-emitting devices employing microcontact printing with electricfield-independent emission
title_full Top-emitting quantum dots light-emitting devices employing microcontact printing with electricfield-independent emission
title_fullStr Top-emitting quantum dots light-emitting devices employing microcontact printing with electricfield-independent emission
title_full_unstemmed Top-emitting quantum dots light-emitting devices employing microcontact printing with electricfield-independent emission
title_short Top-emitting quantum dots light-emitting devices employing microcontact printing with electricfield-independent emission
title_sort top-emitting quantum dots light-emitting devices employing microcontact printing with electricfield-independent emission
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4773764/
https://www.ncbi.nlm.nih.gov/pubmed/26932521
http://dx.doi.org/10.1038/srep22530
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