Synthesis and Characterization of Upconversion Fluorescent Yb3+, Er3+ Doped RbY2F7 Nano- and Microcrystals

DC FieldValueLanguage
dc.contributor.authorSchaefer, Helmut
dc.contributor.authorPtacek, Pavel
dc.contributor.authorVoss, Benjamin
dc.contributor.authorEickmeier, Henning
dc.contributor.authorNordmann, Joerg
dc.contributor.authorHaase, Markus
dc.date.accessioned2021-12-23T15:59:30Z-
dc.date.available2021-12-23T15:59:30Z-
dc.date.issued2010
dc.identifier.issn15287483
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/3969-
dc.description.abstractLanthanide-doped RbY2F7 nanocrystals with a mean diameter of approximately 10 rim were synthesized at 185 degrees C in the high boiling organic solvent N-(2-hydroxyethyl)-ethylenediamine (HEEDA) using ammonium fluoride, rare earth chlorides, and a solution of rubidium alkoxide of N-(2-hydroxyethyl)-ethylenediamine in HEEDA as precursors. Transmission electron microscopy images of the particles reveal that they are separated but have a broad size distribution ranging from 6 to 22 nm. Heat-treatment of these nanocrystals (600 degrees C for 45 min) led to bulk material which shows highly efficient light emission upon continuous wave (CW) excitation at 978 nm. As an alternative to the synthesis procedure carried out in the organic solvent HEEDA, we performed a microwave synthesis under hydrothermal conditions. This procedure led to the same composition of the material, but we obtained a marked increase of the particle size (60 nm). Apart from the optical properties, the structure and the morphology as well as the constitution of the three products were investigated by means of powder X-ray diffraction and X-ray fluorescence spectroscopy.
dc.language.isoen
dc.publisherAMER CHEMICAL SOC
dc.relation.ispartofCRYSTAL GROWTH & DESIGN
dc.subjectChemistry
dc.subjectChemistry, Multidisciplinary
dc.subjectCrystallography
dc.subjectLUMINESCENCE
dc.subjectMaterials Science
dc.subjectMaterials Science, Multidisciplinary
dc.subjectNAYF4 NANOCRYSTALS
dc.subjectOPTICAL-PROPERTIES
dc.subjectSIZE
dc.titleSynthesis and Characterization of Upconversion Fluorescent Yb3+, Er3+ Doped RbY2F7 Nano- and Microcrystals
dc.typejournal article
dc.identifier.doi10.1021/cg901441p
dc.identifier.isiISI:000277273900031
dc.description.volume10
dc.description.issue5
dc.description.startpage2202
dc.description.endpage2208
dc.contributor.orcid0000-0001-5906-3354
dc.contributor.orcid0000-0002-9686-8810
dc.contributor.researcheridD-7919-2011
dc.identifier.eissn15287505
dc.publisher.place1155 16TH ST, NW, WASHINGTON, DC 20036 USA
dcterms.isPartOf.abbreviationCryst. Growth Des.
crisitem.author.deptInstitut für Chemie neuer Materialien-
crisitem.author.deptidinstitute11-
crisitem.author.orcid0000-0002-9686-8810-
crisitem.author.parentorgFB 05 - Biologie/Chemie-
crisitem.author.grandparentorgUniversität Osnabrück-
crisitem.author.netidHaMa954-
Show simple item record

Page view(s)

2
Last Week
0
Last month
1
checked on Apr 14, 2024

Google ScholarTM

Check

Altmetric