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Terrylene in a 2,3-Dichloronaphthalene Crystal. New System for Optical Single-Molecule Investigations
M. Białkowska a, W. Chaładaj b, A. Makarewicz a and B. Kozankiewicza
a Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
b Institute of Organic Chemistry, Polish Academy of Sciences, M. Kasprzaka 44/52, 01-224 Warsaw, Poland
Received: October 16, 2015
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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.

DOI: 10.12693/APhysPolA.128.RK.128.3.1-1
PACS numbers: 33.50.Dq, 82.37.-j