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

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

研究成果: Conference contribution

抄録

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.

本文言語English
ホスト出版物のタイトル2003 Nanotechnology Conference and Trade Show - Nanotech 2003
編集者M. Laudon, B. Romanowicz
ページ94-97
ページ数4
出版ステータスPublished - 2003 12 1
イベント2003 Nanotechnology Conference and Trade Show - Nanotech 2003 - San Francisco, CA, United States
継続期間: 2003 2 232003 2 27

出版物シリーズ

名前2003 Nanotechnology Conference and Trade Show - Nanotech 2003
3

Conference

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

ASJC Scopus subject areas

  • Engineering(all)

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