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Fabrication of Monodispersed Barium Titanate Nanoparticles with Narrow Size Distribution

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Pulsed laser ablation (PLA) was used to prepare nanoparticles of barium titanate (BaTiO3). PLA using a titanium-rich Ba–Ti–O ceramic target in oxygen ambience at 400 Pa and following online annealing at 1073 K enabled the production of BaTiO3 nanoparticles (BTNPs) with a perovskite structure having nearly stoichiometric composition. These nanoparticles were directly introduced into a differential mobility analyzer for size classification, leading to the production of monodispersed and nonagglomerated BTNPs with an average particle size of 13.5 nm. The size distribution of the size-classified BTNPs was found to be reasonably narrow with a geometric standard deviation of 1.07.
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Document Type: Research Article

Affiliations: 1: Murata Manufacturing Co. Ltd., Nagaokakyo-shi, Kyoto 617-8555, Japan 2: RIKEN, Wako-shi, Saitama 351-0198, Japan

Publication date: May 1, 2008

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