It has been suggested that excitation of poly(p-phenylene vinylene) (PPV) by photons above the absorption edge produces principally polaron pairs or split excitons. We show that such polaron pairs can account very well for the peaks in the observed picosecond photoinduced absorption, the width of the absorption, and other phenomena associated with photon absorption in PPV.
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Mizes et al. (1994) studied this question.
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