Triplet-triplet annihilation of eosin molecules on the anodized aluminum surface

Spectral-kinetic properties of slow-rate fluorescence caused by triplet-triplet annihilation of triplet-excited eosin molecules on the anodized aluminum surface are studied in the temperature interval 120–290 K. The decay kinetics of slow-rate luminescence of adsorbed eosin molecules is analyzed for models of random triplet excitation energy transfer and exchange-resonance energy transfer that considers the relationship between the depth of luminophor penetration into pores of anodized aluminium and the fractal dimension of its surface.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 10, pp. 7–12, October, 2004.