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 |
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Pages (from-to) | 162-167 |
Number of pages | 6 |
Journal | Ferroelectrics |
Volume | 346 |
DOIs | |
Publication status | Published - 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