Abstract

A spectroscopic CNDO molecular-orbital model of the electronic structure of polymer macromolecules is developed and applied to interpret UV photoemission and absorption spectra of polyacetylene, poly(p-phenylene), polypyrrole, poly(p-phenylene vinylene), and poly(p-xylylene). The degree of localization of injected charges and excitons in these materials may be inferred from such measurements. The influence of disorder on the interpretation of these measurements is indicated.

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