Gain high-quality colloidal quantum dots directly from natural minerals

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dc.contributor.authorWu, W.
dc.contributor.authorLiu, H.
dc.contributor.authorDong, C.
dc.contributor.authorZheng, W.
dc.contributor.authorHan, L.
dc.contributor.authorLi, L.
dc.contributor.authorQiao, S.
dc.contributor.authorYang, J.
dc.contributor.authorDu, X.
dc.date.issued2015
dc.description.abstractGreen and simple synthesis of high-quality colloidal quantum dots (CQDs) is of great importance and highly anticipated yet not fully implemented. Herein, we achieve the direct conversion of natural minerals to highly uniform, crystalline lead sulfide CQDs based on laser irradiation in liquid. The trivial fragmentation of mineral particles by an intense nanosecond laser was found to create a localized high degree of monomer supersaturation in oleic acid, initiating the LaMer growth of uniform CQDs. The photoconductive device made of these CQDs exhibits a competitive temporal response of photocurrent with those highly sensitive photodetectors based on PbS CQDs reported in the literature. Our synthesis strategy paves the way for the most environmentally friendly and convenient mass production of high-quality uniform CQDs.
dc.description.statementofresponsibilityWen-Tian Wu, Hui Liu, Chao Dong, Wen-Jing Zheng, Li-Li Han, Lan Li, Shi-Zhang Qiao, Jing Yang, and Xi-Wen Du
dc.identifier.citationLangmuir, 2015; 31(8):2251-2255
dc.identifier.doi10.1021/la5044415
dc.identifier.issn0743-7463
dc.identifier.issn1520-5827
dc.identifier.orcidQiao, S. [0000-0002-1220-1761] [0000-0002-4568-8422]
dc.identifier.urihttp://hdl.handle.net/2440/95371
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.rights© 2015 American Chemical Society
dc.source.urihttps://doi.org/10.1021/la5044415
dc.subjectSulfides
dc.subjectLead
dc.subjectColloids
dc.subjectQuantum Dots
dc.subjectParticle Size
dc.subjectSurface Properties
dc.titleGain high-quality colloidal quantum dots directly from natural minerals
dc.typeJournal article
pubs.publication-statusPublished

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