Size Control of Nearly Monodisperse beta-NaGdF4 Particles Prepared from Small alpha-NaGdF4 Nanocrystals
DC Element | Wert | Sprache |
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dc.contributor.author | Duehnen, Simon | |
dc.contributor.author | Rinkel, Thorben | |
dc.contributor.author | Haase, Markus | |
dc.date.accessioned | 2021-12-23T15:56:38Z | - |
dc.date.available | 2021-12-23T15:56:38Z | - |
dc.date.issued | 2015 | |
dc.identifier.issn | 08974756 | |
dc.identifier.uri | https://osnascholar.ub.uni-osnabrueck.de/handle/unios/2448 | - |
dc.description.abstract | NaGdF4 nanocrystals of the hexagonal beta-phase can be prepared with very narrow size distribution from small particles of the cubic alpha-phase of NaGdF4, but until now, this method does not allow to control the final particle size. Here we show that the size of beta-NaGdF4 particles can be varied between 4 nm and more than 60 nm by using small alpha-phase particles with different sodium content as precursor. Heating of the 34 nm alpha-phase particles dispersed in oleic acid/octadecene solvent leads to Ostwald-ripening and the formation of beta-NaGdF4 particles with narrow size distribution in all cases. The size of the beta-NaGdF4 particles increases with increasing sodium deficiency of the alpha-phase particles indicating that the number of beta-phase seeds nucleating in the system depends on the ratio of sodium to gadolinium used in the synthesis of the alpha-phase material. | |
dc.language.iso | en | |
dc.publisher | AMER CHEMICAL SOC | |
dc.relation.ispartof | CHEMISTRY OF MATERIALS | |
dc.subject | Chemistry | |
dc.subject | Chemistry, Physical | |
dc.subject | DELIVERY | |
dc.subject | EMISSION | |
dc.subject | GROWTH | |
dc.subject | INFRARED DOWNCONVERSION PHOTOLUMINESCENCE | |
dc.subject | LAYER | |
dc.subject | Materials Science | |
dc.subject | Materials Science, Multidisciplinary | |
dc.subject | MECHANISM | |
dc.subject | NAGDF4 NANOPARTICLES | |
dc.subject | PROBES | |
dc.subject | ULTRASMALL | |
dc.subject | UPCONVERTING NANOPARTICLES | |
dc.title | Size Control of Nearly Monodisperse beta-NaGdF4 Particles Prepared from Small alpha-NaGdF4 Nanocrystals | |
dc.type | journal article | |
dc.identifier.doi | 10.1021/acs.chemmater.5b01013 | |
dc.identifier.isi | ISI:000356202800032 | |
dc.description.volume | 27 | |
dc.description.issue | 11 | |
dc.description.startpage | 4033 | |
dc.description.endpage | 4039 | |
dc.identifier.eissn | 15205002 | |
dc.publisher.place | 1155 16TH ST, NW, WASHINGTON, DC 20036 USA | |
dcterms.isPartOf.abbreviation | Chem. Mat. | |
crisitem.author.dept | Institut für Chemie neuer Materialien | - |
crisitem.author.deptid | institute11 | - |
crisitem.author.orcid | 0000-0002-9686-8810 | - |
crisitem.author.parentorg | FB 05 - Biologie/Chemie | - |
crisitem.author.grandparentorg | Universität Osnabrück | - |
crisitem.author.netid | HaMa954 | - |
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geprüft am 07.06.2024