Rich polymorphism of a rod-like liquid crystal (8CB) confined in two types of unidirectional nanopores

Regis Guegan, D. Morineau, R. Lefort, W. Béziel, M. Guendouz, L. Noirez, A. Henschel, P. Huber

研究成果: Article

29 引用 (Scopus)

抄録

We present a neutron and X-rays scattering study of the phase transitions of 4-n-octyl-4' -cyanobiphenyl (8CB) confined in unidirectional nanopores of porous alumina and porous silicon (PSi) membranes with an average diameter of 30nm. Spatial confinement reveals a rich polymorphism, with at least four different low temperature phases in addition to the smectic A phase. The structural study as a function of thermal treatments and conditions of spatial confinement allows us to get insights into the formation of these phases and their relative stability. It gives the first description of the complete phase behavior of 8CB confined in PSi and provides a direct comparison with results obtained in bulk conditions and in similar geometric conditions of confinement but with reduced quenched disorder effects using alumina anopore membranes.

元の言語English
ページ(範囲)261-273
ページ数13
ジャーナルEuropean Physical Journal E
26
発行部数3
DOI
出版物ステータスPublished - 2008 7 1
外部発表Yes

Fingerprint

Nanopores
Liquid Crystals
Aluminum Oxide
Porous silicon
polymorphism
Silicon
Polymorphism
Liquid crystals
Alumina
rods
liquid crystals
porous silicon
Membranes
Phase Transition
Neutrons
Phase behavior
aluminum oxides
X ray scattering
membranes
Hot Temperature

ASJC Scopus subject areas

  • Biotechnology
  • Biophysics
  • Chemistry(all)
  • Materials Science(all)
  • Surfaces and Interfaces

これを引用

Rich polymorphism of a rod-like liquid crystal (8CB) confined in two types of unidirectional nanopores. / Guegan, Regis; Morineau, D.; Lefort, R.; Béziel, W.; Guendouz, M.; Noirez, L.; Henschel, A.; Huber, P.

:: European Physical Journal E, 巻 26, 番号 3, 01.07.2008, p. 261-273.

研究成果: Article

Guegan, R, Morineau, D, Lefort, R, Béziel, W, Guendouz, M, Noirez, L, Henschel, A & Huber, P 2008, 'Rich polymorphism of a rod-like liquid crystal (8CB) confined in two types of unidirectional nanopores', European Physical Journal E, 巻. 26, 番号 3, pp. 261-273. https://doi.org/10.1140/epje/i2007-10323-0
Guegan, Regis ; Morineau, D. ; Lefort, R. ; Béziel, W. ; Guendouz, M. ; Noirez, L. ; Henschel, A. ; Huber, P. / Rich polymorphism of a rod-like liquid crystal (8CB) confined in two types of unidirectional nanopores. :: European Physical Journal E. 2008 ; 巻 26, 番号 3. pp. 261-273.
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AU - Noirez, L.

AU - Henschel, A.

AU - Huber, P.

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