Structural phase transition in two-dimensional crystallites of organic dye molecules formed on aqueous subphases

Noritaka Kato; Ichiro Hirosawa; Masugu Sato; Naoshi Ikeda; Ken Ichi Iimura; Yoshiaki Uesu

doi:10.1080/00150190601182477

Structural phase transition in two-dimensional crystallites of organic dye molecules formed on aqueous subphases

Noritaka Kato, Ichiro Hirosawa, Masugu Sato, Naoshi Ikeda, Ken Ichi Iimura, Yoshiaki Uesu

Research output: Contribution to journal › Conference article

1 Citation (Scopus)

Abstract

The 2D crystallites of polar organic dye molecules on an aqueous subphase exhibit a thermochromic phase transition. The visible absorption band of the crystallites depends on the temperature and the composition of the subphase. In-situ observations of the phase transition were carried out by a grazing incidence X-ray diffraction method. A shift and a split of the diffraction peaks were observed between the different phases, indicating a change in the molecular arrangement of the crystallites in their chromic transition.

Original language	English
Pages (from-to)	162-167
Number of pages	6
Journal	Ferroelectrics
Volume	346
DOIs	https://doi.org/10.1080/00150190601182477
Publication status	Published - Aug 2 2007
Event	8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8 - Tsukuba, Japan Duration: May 15 2006 → May 19 2006

Keywords

Grazing incidence X-ray diffraction
J-aggregate
Merocyanine dye
Monolayer at the air-water interface; Langmuir film
Synchrotron radiation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1080/00150190601182477

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Kato, N., Hirosawa, I., Sato, M., Ikeda, N., Iimura, K. I., & Uesu, Y. (2007). Structural phase transition in two-dimensional crystallites of organic dye molecules formed on aqueous subphases. Ferroelectrics, 346, 162-167. https://doi.org/10.1080/00150190601182477

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abstract = "The 2D crystallites of polar organic dye molecules on an aqueous subphase exhibit a thermochromic phase transition. The visible absorption band of the crystallites depends on the temperature and the composition of the subphase. In-situ observations of the phase transition were carried out by a grazing incidence X-ray diffraction method. A shift and a split of the diffraction peaks were observed between the different phases, indicating a change in the molecular arrangement of the crystallites in their chromic transition.",

keywords = "Grazing incidence X-ray diffraction, J-aggregate, Merocyanine dye, Monolayer at the air-water interface; Langmuir film, Synchrotron radiation",

author = "Noritaka Kato and Ichiro Hirosawa and Masugu Sato and Naoshi Ikeda and Iimura, {Ken Ichi} and Yoshiaki Uesu",

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AU - Kato, Noritaka

AU - Hirosawa, Ichiro

AU - Sato, Masugu

AU - Ikeda, Naoshi

AU - Iimura, Ken Ichi

AU - Uesu, Yoshiaki

PY - 2007/8/2

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N2 - The 2D crystallites of polar organic dye molecules on an aqueous subphase exhibit a thermochromic phase transition. The visible absorption band of the crystallites depends on the temperature and the composition of the subphase. In-situ observations of the phase transition were carried out by a grazing incidence X-ray diffraction method. A shift and a split of the diffraction peaks were observed between the different phases, indicating a change in the molecular arrangement of the crystallites in their chromic transition.

AB - The 2D crystallites of polar organic dye molecules on an aqueous subphase exhibit a thermochromic phase transition. The visible absorption band of the crystallites depends on the temperature and the composition of the subphase. In-situ observations of the phase transition were carried out by a grazing incidence X-ray diffraction method. A shift and a split of the diffraction peaks were observed between the different phases, indicating a change in the molecular arrangement of the crystallites in their chromic transition.

KW - Grazing incidence X-ray diffraction

KW - J-aggregate

KW - Merocyanine dye

KW - Monolayer at the air-water interface; Langmuir film

KW - Synchrotron radiation

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T2 - 8th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity, RCBJSF-8

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