Sol–gel-immobilised terbium complexes for luminescent sensing of dissolved oxygen by analysis of emission decayElectronic supplementary information (ESI) available: examples of the analysis of the emission decay data for calibration purposes and examples of data sets and their treatment at different delay times. See http://www.rsc.org/suppdata/nj/b1/b110743g/

Abstract

Cationic terbium complexes bearing an N-methylphenanthridinium chromophore have been incorporated in sol–gel thin films and their response characteristics analysed with respect to variations in dissolved oxygen concentration. Analysis of the emission lifetime decay curves (547 nm) has allowed a linear calibration model to be defined over an oxygen concentration range from zero to 0.5 mM (H₂O, 295 K).