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Engineering triangular carbon quantum dots with unprecedented narrow bandwidth emission for multicolored LEDs
Carbon quantum dots (CQDs) have emerged as promising materials for optoelectronic applications on account of carbon’s intrinsic merits of high stability, low cost, and environment-friendliness. However, the CQDs usually give broad emission with full width at half maximum exceeding 80 nm, which funda...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5993800/ https://www.ncbi.nlm.nih.gov/pubmed/29884873 http://dx.doi.org/10.1038/s41467-018-04635-5 |
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author | Yuan, Fanglong Yuan, Ting Sui, Laizhi Wang, Zhibin Xi, Zifan Li, Yunchao Li, Xiaohong Fan, Louzhen Tan, Zhan’ao Chen, Anmin Jin, Mingxing Yang, Shihe |
author_facet | Yuan, Fanglong Yuan, Ting Sui, Laizhi Wang, Zhibin Xi, Zifan Li, Yunchao Li, Xiaohong Fan, Louzhen Tan, Zhan’ao Chen, Anmin Jin, Mingxing Yang, Shihe |
author_sort | Yuan, Fanglong |
collection | PubMed |
description | Carbon quantum dots (CQDs) have emerged as promising materials for optoelectronic applications on account of carbon’s intrinsic merits of high stability, low cost, and environment-friendliness. However, the CQDs usually give broad emission with full width at half maximum exceeding 80 nm, which fundamentally limit their display applications. Here we demonstrate multicolored narrow bandwidth emission (full width at half maximum of 30 nm) from triangular CQDs with a quantum yield up to 54–72%. Detailed structural and optical characterizations together with theoretical calculations reveal that the molecular purity and crystalline perfection of the triangular CQDs are key to the high color-purity. Moreover, multicolored light-emitting diodes based on these CQDs display good stability, high color-purity, and high-performance with maximum luminance of 1882–4762 cd m(−2) and current efficiency of 1.22–5.11 cd A(−1). This work will set the stage for developing next-generation high-performance CQDs-based light-emitting diodes. |
format | Online Article Text |
id | pubmed-5993800 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-59938002018-06-11 Engineering triangular carbon quantum dots with unprecedented narrow bandwidth emission for multicolored LEDs Yuan, Fanglong Yuan, Ting Sui, Laizhi Wang, Zhibin Xi, Zifan Li, Yunchao Li, Xiaohong Fan, Louzhen Tan, Zhan’ao Chen, Anmin Jin, Mingxing Yang, Shihe Nat Commun Article Carbon quantum dots (CQDs) have emerged as promising materials for optoelectronic applications on account of carbon’s intrinsic merits of high stability, low cost, and environment-friendliness. However, the CQDs usually give broad emission with full width at half maximum exceeding 80 nm, which fundamentally limit their display applications. Here we demonstrate multicolored narrow bandwidth emission (full width at half maximum of 30 nm) from triangular CQDs with a quantum yield up to 54–72%. Detailed structural and optical characterizations together with theoretical calculations reveal that the molecular purity and crystalline perfection of the triangular CQDs are key to the high color-purity. Moreover, multicolored light-emitting diodes based on these CQDs display good stability, high color-purity, and high-performance with maximum luminance of 1882–4762 cd m(−2) and current efficiency of 1.22–5.11 cd A(−1). This work will set the stage for developing next-generation high-performance CQDs-based light-emitting diodes. Nature Publishing Group UK 2018-06-08 /pmc/articles/PMC5993800/ /pubmed/29884873 http://dx.doi.org/10.1038/s41467-018-04635-5 Text en © The Author(s) 2018 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 Yuan, Fanglong Yuan, Ting Sui, Laizhi Wang, Zhibin Xi, Zifan Li, Yunchao Li, Xiaohong Fan, Louzhen Tan, Zhan’ao Chen, Anmin Jin, Mingxing Yang, Shihe Engineering triangular carbon quantum dots with unprecedented narrow bandwidth emission for multicolored LEDs |
title | Engineering triangular carbon quantum dots with unprecedented narrow bandwidth emission for multicolored LEDs |
title_full | Engineering triangular carbon quantum dots with unprecedented narrow bandwidth emission for multicolored LEDs |
title_fullStr | Engineering triangular carbon quantum dots with unprecedented narrow bandwidth emission for multicolored LEDs |
title_full_unstemmed | Engineering triangular carbon quantum dots with unprecedented narrow bandwidth emission for multicolored LEDs |
title_short | Engineering triangular carbon quantum dots with unprecedented narrow bandwidth emission for multicolored LEDs |
title_sort | engineering triangular carbon quantum dots with unprecedented narrow bandwidth emission for multicolored leds |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5993800/ https://www.ncbi.nlm.nih.gov/pubmed/29884873 http://dx.doi.org/10.1038/s41467-018-04635-5 |
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