Effect of Boron-Doping Level and Surface Termination in Diamond on Electrogenerated Chemiluminescence,ACS Applied Electronic Materials

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Effect of Boron-Doping Level and Surface Termination in Diamond on Electrogenerated Chemiluminescence
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2021-09-13 , DOI: 10.1021/acsaelm.1c00620
Kohei Sakanoue ₁ , Andrea Fiorani ₁ , Irkham ₁ , Yasuaki Einaga ₁

Affiliation

Electrogenerated chemiluminescence (ECL) is a phenomenon of light emission from a molecular species that is triggered by an electrochemical reaction. As with many electrochemical systems, ECL is highly dependent on the electrode material and its surface state. Boron-doped diamond (BDD) has been applied for ECL, however, thoughtful investigation remains scarce. In particular, a peculiar feature of BDD is the tuning of its properties by changing the amount of boron doping which in turn affects the electrochemical response. Here, we summarize the results from the most important ECL systems, such as Ru(bpy)₃²⁺ (bpy = 2,2′-bipyridine)/tri-n-propylamine (TPrA), Ru(bpy)₃²⁺/S₂O₈^2–, Ru(bpy)₃²⁺/SO₄^2–, Ru(bpy)₃²⁺/CO₃^2–, and the luminol/CO₃^2– system, by using BDD and correlating the doping level to the ECL response. We showed that the most suitable boron doping level and surface state are highly dependent on the ECL system investigated, highlighting the importance of the right choice of the BDD electrode. While focused on ECL systems, these results offer a general interpretation and might be adapted to different electrochemical systems where BDD finds application.

中文翻译：

金刚石中硼掺杂水平和表面终止对电致化学发光的影响

电致化学发光 (ECL) 是一种由电化学反应触发的分子物种的发光现象。与许多电化学系统一样，ECL 高度依赖于电极材料及其表面状态。掺硼金刚石 (BDD) 已被应用于 ECL，然而，深思熟虑的研究仍然很少。特别是，BDD 的一个特殊特征是通过改变硼掺杂量来调整其性质，这反过来又会影响电化学响应。这里，我们总结从最重要的ECL系统，例如Ru（联吡啶）的结果₃²⁺（联吡啶= 2,2'-联吡啶）/三- ñ丙胺（TPRA），吡啶钌₃²⁺ / S ₂ O ₈^2–、Ru(bpy) ₃²⁺ /SO ₄^2–、Ru(bpy) ₃²⁺ /CO ₃^2–和鲁米诺/CO ₃^2–系统，通过使用 BDD 并将掺杂水平与 ECL 响应相关联。我们表明，最合适的硼掺杂水平和表面状态高度依赖于所研究的 ECL 系统，突出了正确选择 BDD 电极的重要性。虽然专注于 ECL 系统，但这些结果提供了一般解释，并且可能适用于 BDD 应用的不同电化学系统。

更新日期：2021-09-28

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