Degree of aggregation of indocyanine green in aqueous solutions determined by Mie scattering

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Indocyanine green in water and aqueous NaCl solutions forms large J-aggregates. The degree of aggregation is estimated by Rayleigh scattering and Mie scattering analysis. The refractive index of the aggregates responsible for scattering is deduced from an aggregate absorption cross-section spectrum using the Kramers-Kronig relations. The average degree of aggregation for indocyanine green in water is found to be of the order of 10(7) while it rises to 10(9) for indocyanine green in 0.01 molar aqueous NaCl solution. (C) 1997 Elsevier Science B.V
Publisher
ELSEVIER SCIENCE BV
Issue Date
1997-08
Language
English
Article Type
Article
Keywords

OPTICAL-DYNAMICS; PSEUDOISOCYANINE; SPECTROSCOPY; ABSORPTION; PICOSECOND; EXCITONS

Citation

CHEMICAL PHYSICS, v.220, no.3, pp.373 - 384

ISSN
0301-0104
DOI
10.1016/S0301-0104(97)00150-X
URI
http://hdl.handle.net/10203/212810
Appears in Collection
PH-Journal Papers(저널논문)
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