Freezing of water droplets on silicon surfaces coated with various silanes

Shunsuke Suzuki, Akira Nakajima, Naoya Yoshida, Munetoshi Sakai, Ayako Hashimoto, Yoshikazu Kameshima, Kiyoshi Okada

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

The freezing behavior of a supercooled water droplet on a silicon surface treated with various silanes was observed directly using a high-speed camera system. Freezing stability is best ensured by heterogeneous nucleation from a three-phase (solid-liquid-air) contact line. Differential scanning calorimetry measurements revealed that the freezing temperature of a supercooled water droplet on a fluoroalkylsilane monolayer was lower than that of alkylsilane. Interaction between the fluorocarbon and water molecule, in addition to structural characteristics of silanes, might play an important role in the heterogeneous nucleation of supercooled water.

Original languageEnglish
Pages (from-to)37-41
Number of pages5
JournalChemical Physics Letters
Volume445
Issue number1-3
DOIs
Publication statusPublished - Sep 4 2007
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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    Suzuki, S., Nakajima, A., Yoshida, N., Sakai, M., Hashimoto, A., Kameshima, Y., & Okada, K. (2007). Freezing of water droplets on silicon surfaces coated with various silanes. Chemical Physics Letters, 445(1-3), 37-41. https://doi.org/10.1016/j.cplett.2007.07.066