Wavelength dependence of the efficiency of singlet oxygen generation upon photoexcitation of photosensitizers

The dependence of the efficiency of singlet oxygen (1Δg) generation upon excitation of photosensitizer at different wavelength was observed for several derivatives of palladium porphyrin in carbon tetrachloride. The efficiency of singlet oxygen generation upon excitation in a blue region of the spec...

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Bibliographic Details
Main Authors: Starukhin, A., Knyukshto, V., Plavskii, V., Gorski, A., Solarski, J.
Format: Conference Proceeding
Language:English
Subjects:
Carbon tetrachloride
Dependence
Efficiency
Molecular chains
Palladium
Photoexcitation
Pollutants
Singlet oxygen
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Summary:The dependence of the efficiency of singlet oxygen (1Δg) generation upon excitation of photosensitizer at different wavelength was observed for several derivatives of palladium porphyrin in carbon tetrachloride. The efficiency of singlet oxygen generation upon excitation in a blue region of the spectrum (Soret band) exceeds by several times the efficiency at excitation in the red spectral region (Q band). The effect of enhancement of singlet oxygen generation upon CW photoexcitation to Soret band of photosensitizer may be explained by influence of high laying triplet states of a donor molecule on the triplet-triplet energy transfer.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201713202019