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dc.contributor.authorHou, Bo
dc.contributor.authorCho, Yuljae
dc.contributor.authorKim, Byung-Sung
dc.contributor.authorAhn, Docheon
dc.contributor.authorLee, Sanghyo
dc.contributor.authorPark, Jong Bae
dc.contributor.authorLee, Young-Woo
dc.contributor.authorHong, John
dc.contributor.authorIm, Hyunsik
dc.contributor.authorMorris, Stephen M
dc.contributor.authorSohn, Jung Inn
dc.contributor.authorCha, SeungNam
dc.contributor.authorKim, Jong Min
dc.date.accessioned2018-12-14T00:30:51Z
dc.date.available2018-12-14T00:30:51Z
dc.date.issued2017-04-21
dc.identifier.issn2050-7526
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/286897
dc.description.abstractVisible emission colloidal quantum dots (QDs) have shown promise in optical and optoelectronic applications. These QDs are typically composed of relatively expensive elements in the form of indium, cadmium, and gallium since alternative candidate materials exhibiting similar properties are yet to be realized. Herein, for the first time, we report red green blue (RGB) photoluminescences with quantum yields of 18% from earth-abundant lead sulfide (PbS) QDs. The visible emissive property is mainly attributed to a high degree of crystallinity even for the extremely small QD sizes (1-3 nm), which is realized by employing a heterogeneous reaction methodology at high growth temperatures (>170 °C). We demonstrate that the proposed heterogeneous synthetic method can be extended to the synthesis of other metal chalcogenide QDs, such as zinc sulfide and zinc selenide, which are promising for future industrial applications. More importantly, benefiting from the enlarged band gaps, the as-prepared PbS solar cells show an impressive open circuit voltage (∼0.8 V) beyond that reported to date.
dc.format.mediumPrint-Electronic
dc.languageeng
dc.publisherRoyal Society of Chemistry (RSC)
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleRed green blue emissive lead sulfide quantum dots: heterogeneous synthesis and applications.
dc.typeArticle
prism.endingPage3698
prism.issueIdentifier15
prism.publicationDate2017
prism.publicationNameJ Mater Chem C Mater
prism.startingPage3692
prism.volume5
dc.identifier.doi10.17863/CAM.34206
dcterms.dateAccepted2017-03-09
rioxxterms.versionofrecord10.1039/c7tc00576h
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2017-04
dc.contributor.orcidHou, Bo [0000-0001-9918-8223]
dc.contributor.orcidHong, John [0000-0002-1513-8622]
dc.contributor.orcidCha, SeungNam [0000-0001-6284-8312]
dc.identifier.eissn2050-7526
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEuropean Research Council (340538)
pubs.funder-project-idEuropean Commission Horizon 2020 (H2020) Research Infrastructures (RI) (685758)
cam.issuedOnline2017-03-23


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International