Gas-phase production of monodisperse ferroelectric nanoparticles (<10 nm in diameter)

Kwang Soo Seol, Satoshi Tomita, Kazuo Takeuchi, Takahiro Katagiri, Takeshi Miyagawa, Yoshimichi Ohki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Laser ablative technology was used to prepare monodisperse nanoparticles (<10 nm in diameter) of lead zirconate titanate (PZT) and strontium bismuth tantalate (SBT). Laser ablation of a ceramic target in oxygen ambience produced amorphous and irregularly-shaped nanoparticles of either PZT or SBT. A subsequent on-line thermal treatment performed on the nanoparticles dispersed in the gas phase brought about compaction and crystallization of the nanoparticles without additional particle growth. It was found that the amorphous PZT nanoparticles began to crystallize above 600°C, and they became a perovskite structure at 900°C. In contrast, the SET nanoparticles began to crystallize at around 800°C. The crystallized nanoparticles were then size-classified by a differential mobility analyzer to yield monodisperse, highly pure, and single-crystalline nanoparticles of PZT and SBT.

Original languageEnglish
Title of host publication2003 Nanotechnology Conference and Trade Show - Nanotech 2003
EditorsM. Laudon, B. Romanowicz
Pages94-97
Number of pages4
Publication statusPublished - 2003 Dec 1
Event2003 Nanotechnology Conference and Trade Show - Nanotech 2003 - San Francisco, CA, United States
Duration: 2003 Feb 232003 Feb 27

Publication series

Name2003 Nanotechnology Conference and Trade Show - Nanotech 2003
Volume3

Conference

Conference2003 Nanotechnology Conference and Trade Show - Nanotech 2003
CountryUnited States
CitySan Francisco, CA
Period03/2/2303/2/27

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Seol, K. S., Tomita, S., Takeuchi, K., Katagiri, T., Miyagawa, T., & Ohki, Y. (2003). Gas-phase production of monodisperse ferroelectric nanoparticles (<10 nm in diameter). In M. Laudon, & B. Romanowicz (Eds.), 2003 Nanotechnology Conference and Trade Show - Nanotech 2003 (pp. 94-97). (2003 Nanotechnology Conference and Trade Show - Nanotech 2003; Vol. 3).