Surface molecular structures of Langmuir-Blodgett films of stearic acid on solid substrates studied by sum frequency generation spectroscopy

Shen Ye, Hiroyuki Noda, Shigeaki Morita, Kohei Uosaki, Masatoshi Osawa

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

The surface molecular structures of Langmuir-Blodgett (LB) films of stearic acid with 1-12 layers formed on the hydrophilic substrates have been investigated in air by sum frequency generation (SFG). The SFG spectra of the even-numbered LB films were almost the same as those of the odd-numbered films, although it is expected that the molecular structures of the outermost layer for the even- and odd-numbered layers are different in the ideal model. In combination with AFM measurements, these experimental results are explained in terms of a flip-over model for the structural changes at the outermost layer of the even-numbered LB films.

Original languageEnglish
Pages (from-to)2238-2242
Number of pages5
JournalLangmuir
Volume19
Issue number6
DOIs
Publication statusPublished - 2003 Mar 18
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Fingerprint Dive into the research topics of 'Surface molecular structures of Langmuir-Blodgett films of stearic acid on solid substrates studied by sum frequency generation spectroscopy'. Together they form a unique fingerprint.

  • Cite this