Lanthanide-doped Na xScF 3+ x nanocrystals: Crystal structure evolution and multicolor tuning

Handle URI:
http://hdl.handle.net/10754/562192
Title:
Lanthanide-doped Na xScF 3+ x nanocrystals: Crystal structure evolution and multicolor tuning
Authors:
Teng, Xue; Zhu, Yihan; Wei, Wei; Wang, Shuchao; Huang, Jingfeng; Naccache, Rafik; Hu, Wenbo; Tok, Alfred Iing Yoong; Han, Yu ( 0000-0003-1462-1118 ) ; Zhang, Qichun; Fan, Quli; Huang, Wei; Capobianco, John A.; Huang, Ling
Abstract:
Rare-earth-based nanomaterials have recently drawn considerable attention because of their unique energy upconversion (UC) capabilities. However, studies of Sc 3+-based nanomaterials are still absent. Herein we report the synthesis and fine control of Na xScF 3+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 (Na 3ScF 6) to pure hexagonal phase (NaScF 4) 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 Sc 3+, Na xScF 3+x:Yb/Er nanocrystals show different UC emission from that of NaYF 4:Yb/Er nanocrystals, which broadens the applications of rare-earth-based nanomaterials ranging from optical communications to disease diagnosis. © 2012 American Chemical Society.
KAUST Department:
Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Nanostructured Functional Materials (NFM) laboratory
Publisher:
American Chemical Society (ACS)
Journal:
Journal of the American Chemical Society
Issue Date:
23-May-2012
DOI:
10.1021/ja3016236
Type:
Article
ISSN:
00027863
Sponsors:
L.H. is grateful for the financial support from the Nanyang Technological University Start-Up Grant (SUG) and the Ministry of Education Tier One Grant (RG20/09). J.A.C. holds a Concordia University Research Chair in Nanoscience and is grateful to Concordia University and the Natural Sciences and Engineering Research Council (NSERC) of Canada for financial support of his research. R.N. thanks NSERC for financial support through the Alexander Graham Bell Graduate Scholarship Program.
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Chemical Science Program

Full metadata record

DC FieldValue Language
dc.contributor.authorTeng, Xueen
dc.contributor.authorZhu, Yihanen
dc.contributor.authorWei, Weien
dc.contributor.authorWang, Shuchaoen
dc.contributor.authorHuang, Jingfengen
dc.contributor.authorNaccache, Rafiken
dc.contributor.authorHu, Wenboen
dc.contributor.authorTok, Alfred Iing Yoongen
dc.contributor.authorHan, Yuen
dc.contributor.authorZhang, Qichunen
dc.contributor.authorFan, Qulien
dc.contributor.authorHuang, Weien
dc.contributor.authorCapobianco, John A.en
dc.contributor.authorHuang, Lingen
dc.date.accessioned2015-08-03T09:46:55Zen
dc.date.available2015-08-03T09:46:55Zen
dc.date.issued2012-05-23en
dc.identifier.issn00027863en
dc.identifier.doi10.1021/ja3016236en
dc.identifier.urihttp://hdl.handle.net/10754/562192en
dc.description.abstractRare-earth-based nanomaterials have recently drawn considerable attention because of their unique energy upconversion (UC) capabilities. However, studies of Sc 3+-based nanomaterials are still absent. Herein we report the synthesis and fine control of Na xScF 3+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 (Na 3ScF 6) to pure hexagonal phase (NaScF 4) 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 Sc 3+, Na xScF 3+x:Yb/Er nanocrystals show different UC emission from that of NaYF 4:Yb/Er nanocrystals, which broadens the applications of rare-earth-based nanomaterials ranging from optical communications to disease diagnosis. © 2012 American Chemical Society.en
dc.description.sponsorshipL.H. is grateful for the financial support from the Nanyang Technological University Start-Up Grant (SUG) and the Ministry of Education Tier One Grant (RG20/09). J.A.C. holds a Concordia University Research Chair in Nanoscience and is grateful to Concordia University and the Natural Sciences and Engineering Research Council (NSERC) of Canada for financial support of his research. R.N. thanks NSERC for financial support through the Alexander Graham Bell Graduate Scholarship Program.en
dc.publisherAmerican Chemical Society (ACS)en
dc.titleLanthanide-doped Na xScF 3+ x nanocrystals: Crystal structure evolution and multicolor tuningen
dc.typeArticleen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentNanostructured Functional Materials (NFM) laboratoryen
dc.identifier.journalJournal of the American Chemical Societyen
dc.contributor.institutionSchool of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singaporeen
dc.contributor.institutionSchool of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singaporeen
dc.contributor.institutionDepartment of Chemistry and Biochemistry, Centre for Nanoscience Research, Concordia University, 7141 Sherbrook Street West, Montreal, QC H4B 1R6, Canadaen
dc.contributor.institutionKey Laboratory for Organic Electronics and Information Displays (KLOEID), Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210046, Jiangsu, Chinaen
kaust.authorZhu, Yihanen
kaust.authorHan, Yuen
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