Solvent regulation synthesis of single-component white emission carbon quantum dots for white light-emitting diodes

White light-emitting diodes (WLEDs) hold great promise in lighting, display, and visible light communication devices, and single-component white emission carbon quantum dots (SCWE-CQDs) as the key component of WLEDs have many outstanding advantages. However, rapid and efficient synthesis of SCWE-CQD...

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Autores principales:	Rao Longshi, Zhang Qing, Wen Mingfu, Mao Zhongfa, Wei Huaxian, Chang Han-Jui, Niu Xiaodong
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	single-component white emission carbon quantum dots dmf regulation white light-emitting diodes Technology T Chemical technology TP1-1185 Physical and theoretical chemistry QD450-801
Acceso en línea:	https://doaj.org/article/11e67e0aac154dacac77a8068f0db308
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spelling	oai:doaj.org-article:11e67e0aac154dacac77a8068f0db3082021-12-05T14:10:57ZSolvent regulation synthesis of single-component white emission carbon quantum dots for white light-emitting diodes2191-909710.1515/ntrev-2021-0036https://doaj.org/article/11e67e0aac154dacac77a8068f0db3082021-06-01T00:00:00Zhttps://doi.org/10.1515/ntrev-2021-0036https://doaj.org/toc/2191-9097White light-emitting diodes (WLEDs) hold great promise in lighting, display, and visible light communication devices, and single-component white emission carbon quantum dots (SCWE-CQDs) as the key component of WLEDs have many outstanding advantages. However, rapid and efficient synthesis of SCWE-CQDs with high photoluminescence quantum yield (PLQY) and stability remains challenging. Here, we report a novel solvent engineering strategy to obtain highly photoluminescent SCWE-CQDs by controlling the dilution ratios between N,N-dimethylformamide (DMF) and pristine red carbon quantum dots (RCQDs) solution. By optimizing synthesis conditions, the relative PLQY of the SCWE-CQDs solution reached 53%. Morphological, structural, and optical property characterizations indicate that the combined action of the hydrogen bond (HB) effect and the size effect leads to the blue shift of RCQDs, but the HB effect is more dominant than the particle size in causing large spectral shifts. In addition, the WLEDs with high color rendering index of 89 and remarkable reliability were obtained based on the highly photoluminescent SCWE-CQDs. This facile solvent engineering approach for synthesizing tunable emission CQDs will promote the progress of carbon-based luminescent materials for applications in optoelectronic devices.Rao LongshiZhang QingWen MingfuMao ZhongfaWei HuaxianChang Han-JuiNiu XiaodongDe Gruyterarticlesingle-component white emissioncarbon quantum dotsdmf regulationwhite light-emitting diodesTechnologyTChemical technologyTP1-1185Physical and theoretical chemistryQD450-801ENNanotechnology Reviews, Vol 10, Iss 1, Pp 465-477 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	single-component white emission carbon quantum dots dmf regulation white light-emitting diodes Technology T Chemical technology TP1-1185 Physical and theoretical chemistry QD450-801
spellingShingle	single-component white emission carbon quantum dots dmf regulation white light-emitting diodes Technology T Chemical technology TP1-1185 Physical and theoretical chemistry QD450-801 Rao Longshi Zhang Qing Wen Mingfu Mao Zhongfa Wei Huaxian Chang Han-Jui Niu Xiaodong Solvent regulation synthesis of single-component white emission carbon quantum dots for white light-emitting diodes
description	White light-emitting diodes (WLEDs) hold great promise in lighting, display, and visible light communication devices, and single-component white emission carbon quantum dots (SCWE-CQDs) as the key component of WLEDs have many outstanding advantages. However, rapid and efficient synthesis of SCWE-CQDs with high photoluminescence quantum yield (PLQY) and stability remains challenging. Here, we report a novel solvent engineering strategy to obtain highly photoluminescent SCWE-CQDs by controlling the dilution ratios between N,N-dimethylformamide (DMF) and pristine red carbon quantum dots (RCQDs) solution. By optimizing synthesis conditions, the relative PLQY of the SCWE-CQDs solution reached 53%. Morphological, structural, and optical property characterizations indicate that the combined action of the hydrogen bond (HB) effect and the size effect leads to the blue shift of RCQDs, but the HB effect is more dominant than the particle size in causing large spectral shifts. In addition, the WLEDs with high color rendering index of 89 and remarkable reliability were obtained based on the highly photoluminescent SCWE-CQDs. This facile solvent engineering approach for synthesizing tunable emission CQDs will promote the progress of carbon-based luminescent materials for applications in optoelectronic devices.
format	article
author	Rao Longshi Zhang Qing Wen Mingfu Mao Zhongfa Wei Huaxian Chang Han-Jui Niu Xiaodong
author_facet	Rao Longshi Zhang Qing Wen Mingfu Mao Zhongfa Wei Huaxian Chang Han-Jui Niu Xiaodong
author_sort	Rao Longshi
title	Solvent regulation synthesis of single-component white emission carbon quantum dots for white light-emitting diodes
title_short	Solvent regulation synthesis of single-component white emission carbon quantum dots for white light-emitting diodes
title_full	Solvent regulation synthesis of single-component white emission carbon quantum dots for white light-emitting diodes
title_fullStr	Solvent regulation synthesis of single-component white emission carbon quantum dots for white light-emitting diodes
title_full_unstemmed	Solvent regulation synthesis of single-component white emission carbon quantum dots for white light-emitting diodes
title_sort	solvent regulation synthesis of single-component white emission carbon quantum dots for white light-emitting diodes
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/11e67e0aac154dacac77a8068f0db308
work_keys_str_mv	AT raolongshi solventregulationsynthesisofsinglecomponentwhiteemissioncarbonquantumdotsforwhitelightemittingdiodes AT zhangqing solventregulationsynthesisofsinglecomponentwhiteemissioncarbonquantumdotsforwhitelightemittingdiodes AT wenmingfu solventregulationsynthesisofsinglecomponentwhiteemissioncarbonquantumdotsforwhitelightemittingdiodes AT maozhongfa solventregulationsynthesisofsinglecomponentwhiteemissioncarbonquantumdotsforwhitelightemittingdiodes AT weihuaxian solventregulationsynthesisofsinglecomponentwhiteemissioncarbonquantumdotsforwhitelightemittingdiodes AT changhanjui solventregulationsynthesisofsinglecomponentwhiteemissioncarbonquantumdotsforwhitelightemittingdiodes AT niuxiaodong solventregulationsynthesisofsinglecomponentwhiteemissioncarbonquantumdotsforwhitelightemittingdiodes
_version_	1718371521879080960

Solvent regulation synthesis of single-component white emission carbon quantum dots for white light-emitting diodes

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