In this paper we present a spectroscopic study of chlorophyllain solutions and in anhydrous polyvinyl alcohol films. Absorption, excitation and emission spectra, combined with fluorescence lifetime and time‐resolved anisotropy measurements show that chlorophyllain anhydrous polyvinyl alcohol films exists in a purely monomeric state. Furthermore, it appears that the monomeric chlorophyllaexhibits an efficient excitation energy transfer in this polyvinyl alcohol matrix. These results are rationalized in terms of a model in which the chlorophyllamolecules are located within pockets, formed by the polymer chains. It is concluded that the chlorophyll a‐anhydrous polyvinyl alcohol film is a suitable system for studying energy transfer processes, especially because the factors governing energy transfer such as mutual orientation and separation of the molecules can easily be controlled.
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Zandvoort et al. (1993) studied this question.
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