Photothermal methods as tools for investigation of weakly interacting non-fluorescent phthalocyanines

In this paper, we report the spectroscopic properties of two newly synthesized phthalocyanines when substituted with short and long alkyl chains dissolved in dimethyl sulfoxide. The dyes are non-fluorescent and show a weak tendency for dimer formation. The aggregation process is not clearly visible...

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Bibliographic Details
Published in:	Journal of photochemistry and photobiology. A, Chemistry. Vol. 163; no. 1-2; pp. 201 - 207
Main Authors:	Boguta, Andrzej, Wójcik, Aleksandra, Ion, Rodica M., Wróbel, Danuta
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 15-04-2004
Subjects:	Non-radiative relaxation Photothermal spectroscopy Phthalocyanine Triplet state generation Phthalocyanine Photothermal spectroscopy Triplet state generation PAS Pc LIOAS BCP Non-radiative relaxation
Online Access:	Get full text
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Summary:	In this paper, we report the spectroscopic properties of two newly synthesized phthalocyanines when substituted with short and long alkyl chains dissolved in dimethyl sulfoxide. The dyes are non-fluorescent and show a weak tendency for dimer formation. The aggregation process is not clearly visible in the absorption spectra. Therefore, steady-state and time-resolved photothermal methods were applied to evaluate the existence of the dye aggregates and their influence on spectral parameters of the investigated dyes.
ISSN:	1010-6030 1873-2666
DOI:	10.1016/S1010-6030(03)00445-3