dc.contributor.authorTeng, Xue
dc.contributor.authorZhu, Yihan
dc.contributor.authorWei, Wei
dc.contributor.authorWang, Shuchao
dc.contributor.authorHuang, Jingfeng
dc.contributor.authorNaccache, Rafik
dc.contributor.authorHu, Wenbo
dc.contributor.authorTok, Alfred Iing Yoong
dc.contributor.authorHan, Yu
dc.contributor.authorZhang, Qichun
dc.contributor.authorFan, Qu-Li
dc.contributor.authorHuang, Wei
dc.contributor.authorCapobianco, John A.
dc.contributor.authorHuang, Ling
dc.identifier.citationTeng, X., Zhu, Y., Wei, W., Wang, S., Huang, J., Naccache, R., et al. (2012). Lanthanide-Doped NaxScF3+x Nanocrystals: Crystal Structure Evolution and Multicolor Tuning . Journal of the American Chemical Society, 134(20), 8340-8343.en_US
dc.description.abstractRare-earth-based nanomaterials have recently drawn considerable attention because of their unique energy upconversion (UC) capabilities. However, studies of Sc3+-based nanomaterials are still absent. Herein we report the synthesis and fine control of NaxScF3+x nanocrystals by tuning of the ratio of oleic acid (OA, polar surfactant) to 1-octadecene (OD, nonpolar solvent). When the OA:OD ratio was increased from low (3:17) to high (3:7), the nanocrystals changed from pure monoclinic phase (Na3ScF6) to pure hexagonal phase (NaScF4) via a transition stage at an intermediate OA:OD ratio (3:9) where a mixture of nanocrystals in monoclinic and hexagonal phases was obtained and the coexistence of the two phases inside individual nanocrystals was also observed. More significantly, because of the small radius of Sc3+, NaxScF3+x:Yb/Er nanocrystals show different UC emission from that of NaYF4:Yb/Er nanocrystals, which broadens the applications of rare-earth-based nanomaterials ranging from optical communications to disease diagnosis.en_US
dc.relation.ispartofseriesJournal of the American chemical societyen_US
dc.rights© 2012 American Chemical Society.en_US
dc.titleLanthanide-doped NaxScF3+ x nanocrystals : crystal structure evolution and multicolor tuningen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.contributor.schoolSchool of Materials Science and Engineeringen_US

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