The intensity of the electronic origin in the emission spectrum of C70 exhibits a strong solvent sensitivity. The intensity of this peak increases relative to the vibronic features as the dielectric constant of the solvent increases. This solvent dependence is explained by an extension of Platt's Perimeter Free Electron Orbital model. The fullerenes, in particular C60 and C70, possess a nearly spherical symmetry that gives rise to the presence of significant electronic orbital angular momentum. The unexpected spectral sensitivity is shown to arise from quenching of the electronic angular momentum by the solvent environment.
|Original language||English (US)|
|Number of pages||7|
|Journal||Materials Research Society Symposium - Proceedings|
|State||Published - Jan 1 1995|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials