Dynamic behavior of SiO- and SiO2-coated ZnO ultrafine particles and growth mechanism of Zn2SiO4 crystal

Toshiaki Tanigaki, Hitoshi Suzuki, Yuki Kimura, Osamu Kido, Yoshio Saito, Chihiro Kaito

研究成果: Article査読

7 被引用数 (Scopus)


In order to elucidate the stability of a silicon oxide layer on ZnO, the dynamic behavior of SiO- and SiO2-layer-coated ZnO ultrafine particle surfaces were directly observed by heating in a transmission electron microscope up to 700°C. In the case of SiO-coated ZnO ultrafine particles, ZnO nanocrystallites with the size of 2nm grew in the SiO layer at 500°C. In the case of SiO2-coated ZnO ultrafine particles, β-cristobalite with the size of 10nm order was grown at 600°C. Zn2SiO4 particles were grown by coalescence between β-cristobalite and ZnO at 700°C. By comparing the SiO and SiO2 layers on ZnO ultrafine particles, it was found that the behaviors of the two silicon oxide layers are clearly different.

ジャーナルJournal of Crystal Growth
出版ステータスPublished - 2003 9 1

ASJC Scopus subject areas

  • 凝縮系物理学
  • 無機化学
  • 材料化学


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