The fluorescence of Poly(2-methoxy,5-(2′-ethylhexloxy)-p-phenylene-vinylene) (MEH–PPV) quenched by fullerenes was examined, and the results indicate that this quenching is not dynamic. Strong interaction in the excited state between them may be caused by the photoinduced charge transfer and π–π conjugated system interaction. More direct and convincing evidence of the charge transfer complex are presented.
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Zheng et al. (1998) studied this question.