Toward efficient photochemistry from upper excited electronic states: Detection of long S2 lifetime of perylene

A long 0.9 ps lifetime of the upper excited singlet state in perylene is resolved by femtosecond pump-probe measurements under ultraviolet (4.96 eV) excitation and further validated by theoretical simulations of transient absorption kinetics. This finding prompts exploration and development of novel perylene-based materials for upper excited state photochemistry applications.

Automated summary

The long lifetime of the upper excited singlet state in perylene has been resolved through femtosecond pump-probe measurements and validated by theoretical simulations. This finding will drive exploration and development of novel perylene-based materials for applications in upper excited state photochemistry.