Electrogenerated Chemiluminescence of Luminol on Wireless Conducting Polymer Films
Electrogenerated Chemiluminescence of Luminol on Wireless Conducting Polymer Films
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DOI：
10.1016/j.electacta.2021.138718
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发表时间：
2021-06
影响因子：
6.6
通讯作者：
E. Villani;Naoki Shida;S. Inagi
中科院分区：
文献类型：
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作者：
E. Villani;Naoki Shida;S. Inagi
本文报道了在碱性水溶液中，鲁米诺和过氧化氢（H2 O2）在纯导电聚合物（CP）膜上产生的电化学发光（ECL）。采用恒电流电解法制备了聚3，4-乙撑二氧噻吩（PEDOT）和聚吡咯（PPy）薄膜作为双极电极，利用双极电化学方法实现了电致发光（ECL）的无线驱动.一个共同的数码相机被用来捕捉强的电化学发光发光的鲁米诺产生的阳极极的这种薄膜。ECL强度曲线显示两种材料上的梯度发射，PPy上具有宽的发光区域，PEDOT上具有窄的边缘限制的ECL区域。成像分析还允许评价作为总施加电压（Etot）和电导率的函数的两种CP的ECL行为。此外，电场驱动产生的分子O2诱导推进的PEDOT和聚吡咯薄膜，可以其次是鲁米诺电化学发光。据我们所知，这样的结果代表了第一个例子的发光电化学游泳池的基础上独立的膜的本质上纯的CP。我们认为，我们的研究结果可以促进使用这样的材料在广泛的领域的ECL和双极电化学和开放的应用程序作为有机发光电化学游泳者。
We report on the generation of electrochemiluminescence (ECL) from luminol and hydrogen peroxide (H2O2) in alkaline aqueous solution on entirely pure conducting polymer (CP) films. Poly(3,4-ethylenedioxythiophene) (PEDOT) and polypyrrole (PPy) films prepared by constant current electrolysis were used as bipolar electrodes (BPEs) to drive ECL emission in a wireless mode with the aid of bipolar electrochemistry. A common digital camera was used to capture the strong ECL emission of luminol generated at the anodic pole of such films. ECL intensity profiles revealed a gradient emission on both materials, with a broad light-emitting region on PPy and a narrow, edge-confined, ECL region on PEDOT. Imaging analysis also allowed the evaluation of the ECL behavior of both CPs as a function of the total applied voltage (Etot) and conductivity. Furthermore, electric-field driven generation of molecular O2induces propulsion of PEDOT and PPy films that can be followed by luminol ECL. In our knowledge, such result represents the first example of light-emitting electrochemical swimmers based on free-standing films of intrinsically pure CPs. We presume that our findings can both foster the use of such materials in the wide fields of ECL and bipolar electrochemistry and open up to their application as organic light-emitting electrochemical swimmers.