PHOTOCHEMICAL HOLE BURNING OF PORPHINE IN AMORPHOUS MATRICES

Polarized hole and antihole spectra for tetraphenylporphine in a polystyrene matrix are presented. It is shown that, consistent with the photochemical nature of the hole, the antihole is polarized oppositely to the hole and is distributed throughout the inhomogeneous distribution of absorbers. However, there is also a pronounced asymmetry of the antihole which is interpreted as being due to the amorphous nature of the lattice. A correlation between the site energy distribution functions for the Qx and Qy states is also demonstrated. © 1990 American Chemical Society.