Full-color fluorescent carbon quantum dots

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dc.citation.articleNumbereabb6772
dc.citation.issueNumber40
dc.citation.journalTitleScience Advances
dc.citation.volumeNumber6
dc.contributor.authorWang, Liang
dc.contributor.authorLi, Weitao
dc.contributor.authorYin, Luqiao
dc.contributor.authorLiu, Yijian
dc.contributor.authorGuo, Huazhang
dc.contributor.authorLai, Jiawei
dc.contributor.authorHan, Yu
dc.contributor.authorLi, Gao
dc.contributor.authorLi, Ming
dc.contributor.authorZhang, Jianhua
dc.contributor.authorVajtai, Robert
dc.contributor.authorAjayan, Pulickel M.
dc.contributor.authorWu, Minghong
dc.date.accessioned2020-11-06T02:02:48Z
dc.date.available2020-11-06T02:02:48Z
dc.date.issued2020
dc.description.abstractQuantum dots have innate advantages as the key component of optoelectronic devices. For white light–emitting diodes (WLEDs), the modulation of the spectrum and color of the device often involves various quantum dots of different emission wavelengths. Here, we fabricate a series of carbon quantum dots (CQDs) through a scalable acid reagent engineering strategy. The growing electron-withdrawing groups on the surface of CQDs that originated from acid reagents boost their photoluminescence wavelength red shift and raise their particle sizes, elucidating the quantum size effect. These CQDs emit bright and remarkably stable full-color fluorescence ranging from blue to red light and even white light. Full-color emissive polymer films and all types of high–color rendering index WLEDs are synthesized by mixing multiple kinds of CQDs in appropriate ratios. The universal electron-donating/withdrawing group engineering approach for synthesizing tunable emissive CQDs will facilitate the progress of carbon-based luminescent materials for manufacturing forward-looking films and devices.
dc.identifier.citationWang, Liang, Li, Weitao, Yin, Luqiao, et al.. "Full-color fluorescent carbon quantum dots." <i>Science Advances,</i> 6, no. 40 (2020) AAAS: https://doi.org/10.1126/sciadv.abb6772.
dc.identifier.doihttps://doi.org/10.1126/sciadv.abb6772
dc.identifier.urihttps://hdl.handle.net/1911/109519
dc.language.isoeng
dc.publisherAAAS
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.titleFull-color fluorescent carbon quantum dots
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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