Abstract
The fluorescence decay curves and lifetimes of 9,9′-bianthryl (BA) in polystyrene (PS) polymer matrix are compared with the corresponding ones in poly(vinyl alcohol) (PVA) and poly(hydroxyethylmethacrylate) (PHEMA) polymer matrices at room temperature. The decay curves are mono-exponential in PS with a lifetime of ≈ 6.4 ns and non-exponential in the case of PVA and/or PHEMA with lifetimes of ≈ 1.7 and 10 ns when fitted to a bi-exponential model. This is consistent with the red edge effect (REE results made here and before.
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