Formation of radical ions and peculiarities of optical limiting in solution, containing C_(60), perylene, and tetramethylbenzidine

摘要

Spectral and some nonlinear optical properties of multicomponent solutions, which contain fullerene C_(60), perylene, and tetramethylbenzidine, are investigated. In such systems, enhanced optical limiting and all-optical switching are due to a formation of radical ions by a photoinduced electron transfer. A diagram of electronic states is thermodynamically calculated and prove for efficiency of the photoinduced electron transfer via the excited singlet state of C_(60) is shown.