Abstract

A high-sensitivity photochemical technique has been developed for measuring O21 in order to qualitatively and quantitatively study the sensitizing capability of various solid-phase composites that contain aggregated and nonaggregated photosensitizer molecules in an aqueous medium. The minimum error of measuring the singlet-oxygen concentration in water is 1×10⁸cm⁻³. The operation of the technique is demonstrated, using a solid-phase photosensitizer that contains fullerene C₆₀ aggregates as an example.

© 2009 Optical Society of America

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