Non-radiative deactivation pathways of subphthalocyanine and subnaphthalocyanine dyes and of their mixture |
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Authors: | Wróbel Danuta Boguta Andrzej Mazurkiewicz Piotr |
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Institution: | Faculty of Technical Physics, Institute of Physics, Poznan University of Technology, Nieszawska 13A, 60-965 Poznan, Poland. wrobel@phys.put.poznan.pl |
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Abstract: | Subphthalocyanine and subnaphthalocyanine dyes and their mixture were investigated by means of the spectroscopic and photoelectric methods. Absorption, fluorescence, steady-state and time-resolved photothermal measurements for the dyes and their mixture were done in order to get information about the radiative and non-radiative deactivation processes as competetive processes to charge separation. It was shown that energy transfer between the dyes improved the photocurrent generation in photoelectrochemical cells (PEC) based on In(2)O(3) and SnO(2) as an electrode. The possible participation of the dye triplet states in non-radiative processes was discussed. |
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