Simultaneous phase and size control of upconversion nanocrystals through lanthanide doping

Handle URI:
http://hdl.handle.net/10754/561452
Title:
Simultaneous phase and size control of upconversion nanocrystals through lanthanide doping
Authors:
Wang, Feng; Han, Yu ( 0000-0003-1462-1118 ) ; Lim, Chinseong; Lu, Yunhao; Wang, Juan; Xu, Jun; Chen, Hongyu; Zhang, Chun; Hong, Minghui; Liu, Xiaogang
Abstract:
Doping is a widely applied technological process in materials science that involves incorporating atoms or ions of appropriate elements into host lattices to yield hybrid materials with desirable properties and functions. For nanocrystalline materials, doping is of fundamental importance in stabilizing a specific crystallographic phase, modifying electronic properties, modulating magnetism as well as tuning emission properties. Here we describe a material system in which doping influences the growth process to give simultaneous control over the crystallographic phase, size and optical emission properties of the resulting nanocrystals. We show that NaYF 4 nanocrystals can be rationally tuned in size (down to ten nanometres), phase (cubic or hexagonal) and upconversion emission colour (green to blue) through use of trivalent lanthanide dopant ions introduced at precisely defined concentrations. We use first-principles calculations to confirm that the influence of lanthanide doping on crystal phase and size arises from a strong dependence on the size and dipole polarizability of the substitutional dopant ion. Our results suggest that the doping-induced structural and size transition, demonstrated here in NaYF 4 upconversion nanocrystals, could be extended to other lanthanide-doped nanocrystal systems for applications ranging from luminescent biological labels to volumetric three-dimensional displays. © 2010 Macmillan Publishers Limited. All rights reserved.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Advanced Membranes and Porous Materials Research Center; Nanostructured Functional Materials (NFM) laboratory
Publisher:
Springer Nature
Journal:
Nature
Issue Date:
25-Feb-2010
DOI:
10.1038/nature08777
PubMed ID:
20182508
Type:
Article
ISSN:
00280836
Sponsors:
We thank G. A. Ozin, X. Chen, F. Stellacci, C. Yan, Y. Xia, L. Cademartiri, T. Nann, Y. Li and Y. C. Cao for discussions. This study was supported in part by the National University of Singapore (NUS), the Ministry of Education of Singapore, the Singapore-MIT Alliance, and the Agency for Science, Technology and Research (A*STAR). X. L. is grateful to the NUS for a Young Investigator Award.
Appears in Collections:
Articles; Advanced Membranes and Porous Materials Research Center; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorWang, Fengen
dc.contributor.authorHan, Yuen
dc.contributor.authorLim, Chinseongen
dc.contributor.authorLu, Yunhaoen
dc.contributor.authorWang, Juanen
dc.contributor.authorXu, Junen
dc.contributor.authorChen, Hongyuen
dc.contributor.authorZhang, Chunen
dc.contributor.authorHong, Minghuien
dc.contributor.authorLiu, Xiaogangen
dc.date.accessioned2015-08-02T09:11:42Zen
dc.date.available2015-08-02T09:11:42Zen
dc.date.issued2010-02-25en
dc.identifier.issn00280836en
dc.identifier.pmid20182508en
dc.identifier.doi10.1038/nature08777en
dc.identifier.urihttp://hdl.handle.net/10754/561452en
dc.description.abstractDoping is a widely applied technological process in materials science that involves incorporating atoms or ions of appropriate elements into host lattices to yield hybrid materials with desirable properties and functions. For nanocrystalline materials, doping is of fundamental importance in stabilizing a specific crystallographic phase, modifying electronic properties, modulating magnetism as well as tuning emission properties. Here we describe a material system in which doping influences the growth process to give simultaneous control over the crystallographic phase, size and optical emission properties of the resulting nanocrystals. We show that NaYF 4 nanocrystals can be rationally tuned in size (down to ten nanometres), phase (cubic or hexagonal) and upconversion emission colour (green to blue) through use of trivalent lanthanide dopant ions introduced at precisely defined concentrations. We use first-principles calculations to confirm that the influence of lanthanide doping on crystal phase and size arises from a strong dependence on the size and dipole polarizability of the substitutional dopant ion. Our results suggest that the doping-induced structural and size transition, demonstrated here in NaYF 4 upconversion nanocrystals, could be extended to other lanthanide-doped nanocrystal systems for applications ranging from luminescent biological labels to volumetric three-dimensional displays. © 2010 Macmillan Publishers Limited. All rights reserved.en
dc.description.sponsorshipWe thank G. A. Ozin, X. Chen, F. Stellacci, C. Yan, Y. Xia, L. Cademartiri, T. Nann, Y. Li and Y. C. Cao for discussions. This study was supported in part by the National University of Singapore (NUS), the Ministry of Education of Singapore, the Singapore-MIT Alliance, and the Agency for Science, Technology and Research (A*STAR). X. L. is grateful to the NUS for a Young Investigator Award.en
dc.publisherSpringer Natureen
dc.titleSimultaneous phase and size control of upconversion nanocrystals through lanthanide dopingen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Centeren
dc.contributor.departmentNanostructured Functional Materials (NFM) laboratoryen
dc.identifier.journalNatureen
dc.contributor.institutionDepartment of Chemistry, National University of Singapore, 117543, Singapore, Singaporeen
dc.contributor.institutionOptical Materials and Systems Division, Data Storage Institute, A STAR, 117608, Singapore, Singaporeen
dc.contributor.institutionDepartment of Physics, National University of Singapore, 117543, Singapore, Singaporeen
dc.contributor.institutionDivision of Chemistry and Biological Chemistry, Nanyang Technological University, 637371 Singapore, Singaporeen
dc.contributor.institutionDepartment of Electrical and Computer Engineering, National University of Singapore, 117543 Singapore, Singaporeen
kaust.authorHan, Yuen
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