Abstract
The triplet spectroscopy of 3,6-dibromocarbazole chromophores in a poly[2-(3,6-dibromo-9-carbazolyl)ethyl methacrylate-co-methyl methacrylate] was investigated. Owing to the «heavy atom effect» on the rate of singlet-triplet intersystem crossing, the phosphorescence spectra were clearly observed in a wide range of copolymer compositions. Although the triplet interaction between chromophores was weak in 2-methyltetrahydrofuran rigid glass, the copolymer films showed an alteration in spectra from the monomer to the triplet excimer emission with increasing chromophore concentration
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