Activation energy of kink incorporation of particles into colloidal crystals with attractive interactions

Masahiro Kanno, Yutaka Tsuboi, Shigeki Matsuo, Yoshihisa Suzuki

研究成果: Article査読

抄録

The kink incorporation and diffusion of particles on the growth interface of colloidal crystals with attractive interactions between particles are important elementary processes. We have successfully estimated the activation energy of kink incorporation, ϵkink, and vibrational frequency, ν, of silica particles on the growth interface using two fundamentally different approaches. One was the use of the Arrhenius plot of step velocities, Vstep, at five temperatures. The other was the use of ν measured by the direct observation of particle movements with a high-speed camera. Although ν and ϵkink took similar values for both approaches, the errors of ν and ϵkink are smaller for the direct observation case than those obtained by the Arrhenius plot. This study is the first to estimate quantitively the activation energy of kink incorporation and the vibrational frequency of particles on the growth interface of a colloidal crystal. These findings would contribute significantly to the understanding of crystal growth mechanisms.

本文言語English
ページ(範囲)1828-1832
ページ数5
ジャーナルCrystEngComm
25
12
DOI
出版ステータスPublished - 2023 3月 2

ASJC Scopus subject areas

  • 化学一般
  • 材料科学一般
  • 凝縮系物理学

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