Abstract
In order to clarify the origins of the fast decay component in the luminescence decay curves of Ru(bpy) 2+ 3 Langmuir-Blodgett (LB) films (where bpy is 2,2′-bipyridine) without intentionally added quenchers, we studied how the decay curves were affected by the conditions used for preparation of LB films and for luminescence lifetime measurements: (i) dilution ratios; (ii) measuring atmosphere: (iii) laser power: and (iv) irradiation time. We could find the conditions with which the luminescene decay curves for Ru(bpy) 2+ 3 in LB films were fitted by a single exponential function.
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