Results of optical studies of a new single-molecule system, terrylene molecules in a 2,3-dichloronaphthalene crystal, are presented for the first time. Analysis of the second-order fluorescence intensity correlation function shows that the external heavy-atom effect (due to the chlorine atoms) contributes to the increase of the intersystem crossing rate constant for the S₁ → T₁ transition, by one order of magnitude, whereas the rate constant for the T₁ → S₀ transition is only weakly influenced.
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.