Complex behavior of hemicyanine in Langmuir-Blodgett films revealed by surface pressure measurements and fluorescence microscopy
1
Centre de Physique Mole-culaire Optique et Hertzienne, UMR-CNRS 5798, Talence, France
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Publication type: Journal Article
Publication date: 2011-01-01
scimago Q3
wos Q4
SJR: 0.211
CiteScore: 1.7
Impact factor: 0.8
ISSN: 20702051, 2070206X
Materials Chemistry
Metals and Alloys
Surfaces, Coatings and Films
Organic Chemistry
Abstract
We studied in this work the organization of a hemicyanine dye in Langmuir monolayers and Langmuir-Blodgett (LB) films. Surface pressure measurements revealed the complex behaviour of this molecule at the air-water interface, since three different π-A compression isotherms were obtained under similar experimental conditions. The probability to get one type of isotherm as compared to the others depends on the amount of salts added to adjust the subphase pH, these salts acting as “structure breakers”. Absorption spectra of hemicyanine LB films reveals under specific experimental conditions the presence of H-aggregates into the films, molecules in aggregates being characterized by a particular orientation as compared to surrounding monomers. Their fluorescence images are also different according to corresponding π-A isotherms and pH subphase, showing domains with specific patterns and organization.
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Grauby-Heywang C. et al. Complex behavior of hemicyanine in Langmuir-Blodgett films revealed by surface pressure measurements and fluorescence microscopy // Protection of Metals and Physical Chemistry of Surfaces. 2011. Vol. 47. No. 1. pp. 31-38.
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Grauby-Heywang C., Selector S., Abraham E., Jonusauskas G. Complex behavior of hemicyanine in Langmuir-Blodgett films revealed by surface pressure measurements and fluorescence microscopy // Protection of Metals and Physical Chemistry of Surfaces. 2011. Vol. 47. No. 1. pp. 31-38.
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RIS
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TY - JOUR
DO - 10.1134/S2070205111010059
UR - http://link.springer.com/10.1134/S2070205111010059
TI - Complex behavior of hemicyanine in Langmuir-Blodgett films revealed by surface pressure measurements and fluorescence microscopy
T2 - Protection of Metals and Physical Chemistry of Surfaces
AU - Grauby-Heywang, Christine
AU - Selector, Sophia
AU - Abraham, Emmanuel
AU - Jonusauskas, Gediminas
PY - 2011
DA - 2011/01/01
PB - Pleiades Publishing
SP - 31-38
IS - 1
VL - 47
SN - 2070-2051
SN - 2070-206X
ER -
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BibTex (up to 50 authors)
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@article{2011_Grauby-Heywang,
author = {Christine Grauby-Heywang and Sophia Selector and Emmanuel Abraham and Gediminas Jonusauskas},
title = {Complex behavior of hemicyanine in Langmuir-Blodgett films revealed by surface pressure measurements and fluorescence microscopy},
journal = {Protection of Metals and Physical Chemistry of Surfaces},
year = {2011},
volume = {47},
publisher = {Pleiades Publishing},
month = {jan},
url = {http://link.springer.com/10.1134/S2070205111010059},
number = {1},
pages = {31--38},
doi = {10.1134/S2070205111010059}
}
Cite this
MLA
Copy
Grauby-Heywang, Christine, et al. “Complex behavior of hemicyanine in Langmuir-Blodgett films revealed by surface pressure measurements and fluorescence microscopy.” Protection of Metals and Physical Chemistry of Surfaces, vol. 47, no. 1, Jan. 2011, pp. 31-38. http://link.springer.com/10.1134/S2070205111010059.
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