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首页> 外文会议>Proceedings vol.2005-04; Electrochemical Society(ECS) Meeting and 42nd State-of-the-Art-Program on Compound Semiconductors(SOTAPOCS XLII) and the International Symposium on Processes at the Compound-Semiconductor/Solution Interface; 20050515-20; Quebec C >AN INVESTIGATION OF CURRENT OSCILLATIONS ON N-INP IN SULPHIDE-BASED ELECTROLYTES AT ANODIC POTENTIALS
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AN INVESTIGATION OF CURRENT OSCILLATIONS ON N-INP IN SULPHIDE-BASED ELECTROLYTES AT ANODIC POTENTIALS

机译：阳极电位上硫化物基电解质中N-INP的当前振荡研究

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摘要

In this paper, we report an investigation of factors underlying the anodic oscillatory behavior of n-InP in aqueous sulphide-based electrolytes. Current-time curves at constant potential were recorded and analyzed. The total charge passed during each oscillation was shown to be independent of electrolyte concentration over a significant range. However, the occurrence of oscillations was found to be sensitive to solution composition, potential, and the type of film present on the electrode surface. We also investigated the effect of current interruption at various phases of the oscillatory cycle. We showed that, when the potential is subsequently re-applied, the oscillations are observed to re-start at the same phase at which they were stopped. The oscillatory current region for n-InP in (NH_4)_2S corresponds to growth of a thick porous In_2S_3 layer on the electrode. The microstructure of these layers is discussed in the context of the current-time behavior. Finally we propose a mechanism for anodic oscillations on InP in (NH_4)_2S.
机译：在本文中，我们报告了对基于水硫化物的电解质中n-InP的阳极振荡行为的潜在因素的研究。记录并分析恒定电位下的电流时间曲线。在每次振荡期间通过的总电荷显示出在很大范围内与电解质浓度无关。然而，发现振荡的发生对溶液组成，电势以及电极表面上存在的膜的类型敏感。我们还研究了振荡周期各个阶段电流中断的影响。我们表明，当随后重新施加电势时，观察到振荡在停止它们的同一相位处重新开始。 （NH_4）_2S中n-InP的振荡电流区域对应于电极上厚的多孔In_2S_3层的生长。这些层的微观结构是在当前行为的背景下讨论的。最后，我们提出了一种在（NH_4）_2S中对InP进行阳极振荡的机制。

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