Factors affecting the lifetime of ECL devices, including decomposition of starting materials, formation of side products which react with radical ions or quench excited states, and filming of the electrodes are discussed. The mode of operation of the ECL device is shown to be important in determining its behavior and lifetime; operation of ( i ) three‐electrode pulsed potentiostatic, ( ii ) two‐electrode pulsed voltage, ( iii ) two‐electrode pulsed constant current, and ( iv ) thin‐layer cells is discussed and illustrated, in studies of the Ru ( bip ) 3 2 + system in acetonitrile and the rubrene system in benzonitrile.
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Laser et al. (1975) studied this question.