Study of alkyl organic monolayers with different molecular chain lengths directly attached to silicon

Takahiro Ishizaki, Nagahiro Saito, Lee SunHyung, Kaoru Ishida, Osamu Takai

研究成果: Article

33 引用 (Scopus)

抄録

Alkyl organic monolayers with different alkyl molecular chain lengths directly attached to silicon were prepared at 160°C from 1-decene (C10), 1-dodecene (C12), 1-tetradecene (C14), 1-hexadecene (C16), and 1-octadecene (C18). These monolayers were characterized on the basis of water contact angle measurement, ellipsometry, X-ray reflectivity (XR), X-ray photoelectron spectroscopy (XPS), and grazing incidence X-ray diffraction (GIXD) to elucidate the effect of the molecular chain length on the molecular arrangement and packing density of the monolayers. Water contact angle and XPS measurements showed that C12, C14, and C16 monolayers have a comparably higher quality, while the quality of C10 and C18 monolayers is worse. GIXD revealed that the alkyl monolayers directly attached to the Si were all amorphously structured regardless of their alkyl chain length. The amorphous structure of the alkyl monolayers could be attributed to the rigid Si-C bonding, low quality of hydrogen-terminated silicon substrate, and/or low mobility of physisorbed molecules.

元の言語English
ページ(範囲)9962-9966
ページ数5
ジャーナルLangmuir
22
発行部数24
DOI
出版物ステータスPublished - 2006 11 21
外部発表Yes

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molecular chains
Silicon
Chain length
Monolayers
silicon
x rays
grazing incidence
photoelectron spectroscopy
Contact angle
packing density
X ray photoelectron spectroscopy
diffraction
water
X ray diffraction
ellipsometry
Water
Ellipsometry
Angle measurement
reflectance
Hydrogen

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

これを引用

Study of alkyl organic monolayers with different molecular chain lengths directly attached to silicon. / Ishizaki, Takahiro; Saito, Nagahiro; SunHyung, Lee; Ishida, Kaoru; Takai, Osamu.

:: Langmuir, 巻 22, 番号 24, 21.11.2006, p. 9962-9966.

研究成果: Article

Ishizaki, Takahiro ; Saito, Nagahiro ; SunHyung, Lee ; Ishida, Kaoru ; Takai, Osamu. / Study of alkyl organic monolayers with different molecular chain lengths directly attached to silicon. :: Langmuir. 2006 ; 巻 22, 番号 24. pp. 9962-9966.
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