Department of Chemistry and School of Energy Resources, University of Wyoming, Laramie, Wyoming 82071, United States.
ACS Appl Mater Interfaces. 2013 Jul 10;5(13):5931-6. doi: 10.1021/am4010623. Epub 2013 Jun 20.
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)3(2+)). 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.
叉指式阵列电极（IDAs）用于通过取代的硼二吡咯甲川（BODIPY）染料、9,10-二苯基蒽（DPA）和钌（II）三（吡啶）（Ru（bpy）3（2+））的氧化和还原形式的湮灭产生稳态电致化学发光（ECL）。数字模拟与实验获得的电流和光输出非常吻合。使用三正丙胺和过氧化苯甲酰作为牺牲均相还原剂或氧化剂的核心反应物实验表明，电流对应于染料的电极反应，而不是核心反应物的氧化或还原。结果表明，叉指式阵列可以产生稳定的 ECL，由于在 IDA 中发生器和收集器电极之间的反馈，电流增大，导致光强度放大。ECL 的光输出比具有相似面积的常规平面电极高约 100 倍。
