Key points are not available for this paper at this time.
Abstract Delayed fluorescence has been observed in solutions of anthracene or phenanthrene alone, and sensitized delayed fluorescence from anthracene has been observed in solutions of phenanthrene containing traces of anthracene. The intensities of both the delayed fluorescence and the sensitized delayed fluorescence were found to be proportional to the square of the rate of absorption of exciting light. The results can be explained in terms of a mechanism in which trip let-trip let quenching produces a molecular species carrying the energy from two trip let molecules. The proposed process could apply to other photochemical systems and may have a bearing on the mechanism of photosynthesis.
Parker et al. (Tue,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: