Abstract

The magnitude of matrix-induced electric dipole moments of centrosymmetric dye molecules increases from the blue to the red edge of the inhomogeneous absorption band in a number of dye–matrix systems. For the polymer polyvinyl butyral doped with a symmetrically substituted zinc tetrabenzoporphin this behavior is analyzed with a microscopic stochastic theory of dye–matrix interaction. Moreover, it is shown how electric-field measurements on hole spectra performed at different optical frequencies can be interpreted as a sort of two-dimensional optical spectroscopy. The two frequency scales are given by the inhomogeneous and the homogeneous linewidths. The technique is best suited for investigating amorphous systems, in which the two scales differ most strongly.

© 1992 Optical Society of America

Relationship between electron–phonon coupling and intermolecular interaction parameters in dye-doped organic glasses

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