1 research outputs found
Electrogenerated Chemiluminescence of BODIPY, Ru(bpy)<sub>3</sub><sup>2+</sup>, and 9,10-Diphenylanthracene Using Interdigitated Array Electrodes
Interdigitated array electrodes (IDAs)
were used to produce steady-state electrogenerated chemiluminescence
(ECL) by annihilation of oxidized and reduced forms of a substituted
boron dipyrromethene (BODIPY) dye, 9,10-diphenylanthracene (DPA),
and ruthenium(II) tris(bypiridine) (Ru(bpy)<sub>3</sub><sup>2+</sup>). Digital simulations were in good agreement with the experimentally
obtained currents and light outputs. Coreactant experiments, using
tri-n-propylamine and benzoyl peroxide as a sacrificial homogeneous
reductant or oxidant, show currents corresponding to electrode reactions
of the dyes and not the oxidation or reduction of the coreactants.
The results show that interdigitated arrays can produce stable ECL
where the light intensity is magnified due to the larger currents
as a consequence of feedback between generator and collector electrodes
in the IDA. The light output for ECL is around 100 times higher than
that obtained with regular planar electrodes with similar area