D.Frolov,R.Purlys*, S.Bagdonas, R.Rotomskis, M.Gavutis
Laser Research Centre, Vilnius University, Sauletekio 9, 2040 Vilnius Lithuania
*Physics Faculty, Vilnius University, Sauletekio 9, 2040 Vilnius, Lithuania

• Abstract
• Introduction
• Materials and Methods
• Results and Discusion
• Conclusions
• References

Due to its suitable photophysical properties TPPS₄ was intensively studied as a potential sensitizing agent inducing photochemical reactions in biological environments [1].

A remarkable feature of this porphyrin is that in acidic solution it molecules forms the so-called J-aggregates. However, the details about the structure and formation of these aggregates are not revealed completely.

The aim of the present study was to investigate the formation conditions and the structure of the J-aggregates of TPPS₄.

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