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|Title:||Spectral and luminescent properties and morphology of self-assembled nanostructures of an indotricarbocyanine dye|
|Authors:||Belko, N. V.|
Samtsov, M. P.
Gusakov, G. A.
Tarasau, D. S.
Lugovski, A. A.
Voropay, E. S.
|Keywords:||ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика|
|Citation:||Journal of Applied Spectroscopy, Vol. 85, No. 6,|
|Abstract:||Spectral and luminescent properties of an indotricarbocyanine dye are studied in solutions and after deposition on quartz or silicon substrates. It is found that the dye molecules self-assemble in aqueous EtOH solutions to form H*-aggregates. The absorption band of the H*-aggregates shows a hypsochromic shift of 192 nm (5291 cm–1) relative to the absorption maximum of dye monomers (706 nm) and has a full width at half maximum of 21 nm (797 cm–1). The morphology of the H*-aggregates of the indotricarbocyanine dye is studied for the ﬁ rst time. It is found that the aggregates are rod-like species ~10 nm high, 100 nm wide, and several micrometers long. H-aggregates with a ﬂ uorescence maximum at 560 nm and Stokes shift of 325 cm–1 in addition to non-ﬂ uorescent H*-aggregates form in aqueous EtOH solutions and are nanoparticles with a height of 1–3 nm and lateral dimensions of ~100 nm.|
|Appears in Collections:||Кафедра лазерной физики и спектроскопии|
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