Magneto-Optical Characterization of Excited States in C60
Abstract
We have used various optical and optically detected magnetic. resonance techniques to characterize excited states in C60 in toluenelpolystyrene (T/PS) glass and C60 films produced by evaporation. In C60: T/PS glass at 4K we found long lived (-5 ms) triplet excitons which recombine radiatively with a linear kinetics. Their relatively small zero-field splitting (ZFS) parameters indicate delocalization over the entire C60 molecule. In Cr60 film, however, we found both neutral and charged excitations, with biomolecular recombination kinetics. The neutral photoexcitations are more delocalized triplets with smaller ZFS, whereas the charge carriers are spin 1/2 excitations which we identified as C60 due to their optical transitions and associated photoinduced electroabsorption.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 15, 1992
- Accession Number
- ADA251662
Entities
People
- D. Moses
- Galen D. Stucky
- V. I. Srdanov
- Xishuo Wei
- Z. V. Vardeny
Organizations
- University of California, Santa Barbara