Iodide capped PbS/CdS core-shell quantum dots for efficient long-wavelength near-infrared light-emitting diodes

PbS based quantum dots (QDs) have been studied in great detail for potential applications in electroluminescent devices operating at wavelengths important for telecommunications (1.3–1.6 μm). Despite the recent advances in field of quantum dot light-emitting diode (QLED), further improvements in nea...

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Autores principales: Yang, Xuyong, Ren, Fuqiang, Wang, Yue, Ding, Tao, Sun, Handong, Ma, Dongling, Sun, Xia Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5677035/
https://www.ncbi.nlm.nih.gov/pubmed/29116136
http://dx.doi.org/10.1038/s41598-017-15244-5
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author Yang, Xuyong
Ren, Fuqiang
Wang, Yue
Ding, Tao
Sun, Handong
Ma, Dongling
Sun, Xia Wei
author_facet Yang, Xuyong
Ren, Fuqiang
Wang, Yue
Ding, Tao
Sun, Handong
Ma, Dongling
Sun, Xia Wei
author_sort Yang, Xuyong
collection PubMed
description PbS based quantum dots (QDs) have been studied in great detail for potential applications in electroluminescent devices operating at wavelengths important for telecommunications (1.3–1.6 μm). Despite the recent advances in field of quantum dot light-emitting diode (QLED), further improvements in near-infrared (NIR) emitting device performance are still necessary for the widespread use and commercialization of NIR emitting QLED technology. Here, we report a high-performance 1.51-μm emitting QLED with inverted organic–inorganic hybrid device architecture and PbS/CdS core-shell structured quantum dots as emitter. The resultant QLEDs show a record device performance for the QLEDs in 1.5 μm emission window, with a maximum radiance of 6.04 Wsr(−1) m(−2) and peak external quantum efficiency (EQE) of 4.12%, respectively.
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spelling pubmed-56770352017-11-15 Iodide capped PbS/CdS core-shell quantum dots for efficient long-wavelength near-infrared light-emitting diodes Yang, Xuyong Ren, Fuqiang Wang, Yue Ding, Tao Sun, Handong Ma, Dongling Sun, Xia Wei Sci Rep Article PbS based quantum dots (QDs) have been studied in great detail for potential applications in electroluminescent devices operating at wavelengths important for telecommunications (1.3–1.6 μm). Despite the recent advances in field of quantum dot light-emitting diode (QLED), further improvements in near-infrared (NIR) emitting device performance are still necessary for the widespread use and commercialization of NIR emitting QLED technology. Here, we report a high-performance 1.51-μm emitting QLED with inverted organic–inorganic hybrid device architecture and PbS/CdS core-shell structured quantum dots as emitter. The resultant QLEDs show a record device performance for the QLEDs in 1.5 μm emission window, with a maximum radiance of 6.04 Wsr(−1) m(−2) and peak external quantum efficiency (EQE) of 4.12%, respectively. Nature Publishing Group UK 2017-11-07 /pmc/articles/PMC5677035/ /pubmed/29116136 http://dx.doi.org/10.1038/s41598-017-15244-5 Text en © The Author(s) 2017 Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Yang, Xuyong
Ren, Fuqiang
Wang, Yue
Ding, Tao
Sun, Handong
Ma, Dongling
Sun, Xia Wei
Iodide capped PbS/CdS core-shell quantum dots for efficient long-wavelength near-infrared light-emitting diodes
title Iodide capped PbS/CdS core-shell quantum dots for efficient long-wavelength near-infrared light-emitting diodes
title_full Iodide capped PbS/CdS core-shell quantum dots for efficient long-wavelength near-infrared light-emitting diodes
title_fullStr Iodide capped PbS/CdS core-shell quantum dots for efficient long-wavelength near-infrared light-emitting diodes
title_full_unstemmed Iodide capped PbS/CdS core-shell quantum dots for efficient long-wavelength near-infrared light-emitting diodes
title_short Iodide capped PbS/CdS core-shell quantum dots for efficient long-wavelength near-infrared light-emitting diodes
title_sort iodide capped pbs/cds core-shell quantum dots for efficient long-wavelength near-infrared light-emitting diodes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5677035/
https://www.ncbi.nlm.nih.gov/pubmed/29116136
http://dx.doi.org/10.1038/s41598-017-15244-5
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