A simple and green synthesis of carbon quantum dots from coke for white light-emitting devices

Coke is a by-product of coal. This paper reports a simple and green chemical oxidation method for carbon quantum dots (CQDs) from coke for use in novel applications. The CQDs emit blue fluorescence and have a fluorescence quantum yield of 9.2% and blue-green-red spectral composition of 48%. A light-...

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Detalles Bibliográficos
Autores principales: Feng, Xiaoting, Zhang, Yi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9073647/
https://www.ncbi.nlm.nih.gov/pubmed/35528883
http://dx.doi.org/10.1039/c9ra06946a
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author Feng, Xiaoting
Zhang, Yi
author_facet Feng, Xiaoting
Zhang, Yi
author_sort Feng, Xiaoting
collection PubMed
description Coke is a by-product of coal. This paper reports a simple and green chemical oxidation method for carbon quantum dots (CQDs) from coke for use in novel applications. The CQDs emit blue fluorescence and have a fluorescence quantum yield of 9.2% and blue-green-red spectral composition of 48%. A light-emitting diode (LED) was fabricated by combining the CQDs as a white-light converter with an ultraviolet chip. The Commission Internationale de L'Eclairage chromaticity coordinate (0.31, 0.35) and correlated color temperature (5125 K) of the LED are located in a cool white light zone, suggesting that they have superior potential application in lighting devices.
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spelling pubmed-90736472022-05-06 A simple and green synthesis of carbon quantum dots from coke for white light-emitting devices Feng, Xiaoting Zhang, Yi RSC Adv Chemistry Coke is a by-product of coal. This paper reports a simple and green chemical oxidation method for carbon quantum dots (CQDs) from coke for use in novel applications. The CQDs emit blue fluorescence and have a fluorescence quantum yield of 9.2% and blue-green-red spectral composition of 48%. A light-emitting diode (LED) was fabricated by combining the CQDs as a white-light converter with an ultraviolet chip. The Commission Internationale de L'Eclairage chromaticity coordinate (0.31, 0.35) and correlated color temperature (5125 K) of the LED are located in a cool white light zone, suggesting that they have superior potential application in lighting devices. The Royal Society of Chemistry 2019-10-21 /pmc/articles/PMC9073647/ /pubmed/35528883 http://dx.doi.org/10.1039/c9ra06946a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Feng, Xiaoting
Zhang, Yi
A simple and green synthesis of carbon quantum dots from coke for white light-emitting devices
title A simple and green synthesis of carbon quantum dots from coke for white light-emitting devices
title_full A simple and green synthesis of carbon quantum dots from coke for white light-emitting devices
title_fullStr A simple and green synthesis of carbon quantum dots from coke for white light-emitting devices
title_full_unstemmed A simple and green synthesis of carbon quantum dots from coke for white light-emitting devices
title_short A simple and green synthesis of carbon quantum dots from coke for white light-emitting devices
title_sort simple and green synthesis of carbon quantum dots from coke for white light-emitting devices
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9073647/
https://www.ncbi.nlm.nih.gov/pubmed/35528883
http://dx.doi.org/10.1039/c9ra06946a
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