DYNAMICS OF PHOTOEXCITED STATES IN C-60 - AN OPTICALLY DETECTED MAGNETIC-RESONANCE, ESR, AND LIGHT-INDUCED ESR STUDY

The photoluminescence, X-band optically detected magnetic resonance (ODMR), ESR, and light-induced ESR (LESR) of C60 films and C60 in toluene/polystyrene glass (C60:T/PS) are described. The ESR at g = 1.998 and delocalized triplet LESR and ODMR of C60:T/PS are similar to previously reported spectra. In films, the ODMR indicates that the delocalized triplet is larger and distorted by neighboring molecules. In addition, another, more localized triplet and a narrow photoluminescence-enhancing line at g = 2.0017 +/- 0.0005, consistent with intermolecular polaron recombination, are also observed in films but not glasses.