Scientific Achievement

  • Researchers in the Gas Phase Chemical Physics (GPCP) program revealed the electronic energy relaxation in the isolated anthracene dimer, an archetype of a π-stacked aromatic system relevant to intermolecular photon driven processes such as those in optoelectronics

Significance and Impact

  • The collaboration between experiment and theory suggests that activation of vibrational modes aligned well to a non-adiabatic transition allows for facile energy conversion, which could find applications in quantum information science and singlet fission

Research Details

  • Femtosecond and tunable molecular beam laser spectroscopy allowed for both the necessary spectral- and time-resolution to investigate the relaxation of different vibrational levels in the excited state of the anthracene dimer

A. K. Lemmens, N. Dias, H. G. Tuckman, E. Neuscamman, M. Ahmed, Journal of Chemical Physics (2025).

DOI:10.1063/5.0273753

Work was performed at Lawrence Berkeley National Lab and NERSC.