Triplet States of Cyanine Dye Dimers
| Autor: | G. V. Zakharova, T. V. Fedotova, Alexander K. Chibisov, V. G. Plotnikov, Michael V. Alfimov |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Absorption spectroscopy 010308 nuclear & particles physics Chemistry General Physics and Astronomy Quantum yield Photochemistry Resonance (chemistry) 01 natural sciences chemistry.chemical_compound Electron transfer Intersystem crossing 0103 physical sciences Cyanine Triplet state Absorption (chemistry) |
| Zdroj: | Russian Physics Journal. 63:1363-1369 |
| ISSN: | 1573-9228 1064-8887 |
| DOI: | 10.1007/s11182-020-02179-0 |
| Popis: | The results of investigations of the properties of cyanine dye dimers in the triplet state are presented. The formation of dimers is demonstrated as two absorption bands of differing intensities, which are due to splitting of the S*-level of monomers as a result of their resonance interaction. The cyanine dye dimers are characterized by a relatively high quantum yield of the intersystem crossing. In the triplet-triplet absorption spectra two bands appear, where the long-wavelength band is assigned to a charge transfer state. The cyanine dye dimers in the triplet state are involved in the energy and electron transfer and can act as the photosensitizes of redox reactions. |
| Databáze: | OpenAIRE |
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