Low temperature synthesis and characterization of lanthanide-doped BaTiO3 nanocrystals

The vapor diffusion sol-gel (VDSG) method was employed for the room-temperature synthesis of ~10 nm, aliovalently doped 0.4, 0.8, and 1.6 mol% La:BaTiO3 and 0.4, 0.6, and 1.2 mol% Dy:BaTiO3 nanocrystals. Maximum ensemble relative permittivities of 176 and 208 were observed in the 0.8 mol% La:BaTiO3...

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Published inChemical communications (Cambridge, England) Vol. 50; no. 26; pp. 3480 - 3483
Main Authors Culver, Sean P, Stepanov, Viktor, Mecklenburg, Matthew, Takahashi, Susumu, Brutchey, Richard L
Format Journal Article
LanguageEnglish
Published England 04.04.2014
Subjects
Barium Compounds - chemistry
Cold Temperature
Lanthanoid Series Elements - chemistry
Microscopy, Electron, Transmission
Nanoparticles
Titanium - chemistry
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Summary:The vapor diffusion sol-gel (VDSG) method was employed for the room-temperature synthesis of ~10 nm, aliovalently doped 0.4, 0.8, and 1.6 mol% La:BaTiO3 and 0.4, 0.6, and 1.2 mol% Dy:BaTiO3 nanocrystals. Maximum ensemble relative permittivities of 176 and 208 were observed in the 0.8 mol% La:BaTiO3 and the 1.2 mol% Dy:BaTiO3 nanocrystals, respectively, relative to 89 for undoped BaTiO3 (at 1 MHz, 25 °C) due to local disorder induced by aliovalent substitution.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1359-7345
1364-548X
DOI:10.1039/c3cc49575b