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

The formation conditions and geometrical structure of TPPS₄ J-aggregates were investigated. Analysis of the X-ray diffraction and Atomic force microscopy data showed the possible presence of 2 different types of TPPS₄ J-aggregates. Their presumed structure is shown in Fig.6. The most possible structure of J-aggregates is that it is a chain where molecules are connected between negative sulphonato- group and positively charged center of the porphyrin ring. The formes appearance of macroaggregates can also be applied.

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