volume 47 issue 1 pages 31-38

Complex behavior of hemicyanine in Langmuir-Blodgett films revealed by surface pressure measurements and fluorescence microscopy

Christine Grauby-Heywang 1
Sophia Selector 2
Emmanuel Abraham 1
Gediminas Jonusauskas 1
1
 
Centre de Physique Mole-culaire Optique et Hertzienne, UMR-CNRS 5798, Talence, France
Publication typeJournal Article
Publication date2011-01-01
scimago Q3
wos Q4
SJR0.211
CiteScore1.7
Impact factor0.8
ISSN20702051, 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.
GOST all authors (up to 50) Copy
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.
RIS |
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RIS Copy
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 -
BibTex |
Cite this
BibTex (up to 50 authors) Copy
@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}
}
MLA
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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.