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Optical and electrochemical properties of ordered macroporous gold array on the ITO surface

机译：ITO表面有序大孔金阵列的光学和电化学性质

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摘要

The electrochemical and optical properties of transparent, two-dimensional macroporous gold film were investigated. Colloidal crystal templates were assembled onto indium-doped tin oxide (ITO) glass surface through vertical depositing method. Following gold electrodeposition, they were removed by dissolution with tetrahydrofuran (THF). The highly ordered macroporous gold array was achieved. It was characterized by scanning electron microscope (SEM) and ultraviolet visible (UV-vis) spectrophotometry. The optical transparency of the gold film was near 25% and fairly constant between 300 and 900 nm. The macroporous gold film electrode was mounted into a thin-layer transmission cell. The electrochemical response was evaluated by thin-layer cyclic voltammograms (CV) of the Fe (CN)63~/Fe (CN)64~ couple. Thin-layer cell exhibits good shape of waves and nearly symmetric cathodic and anodic waves. £°' value and n of TMPD+' /TMPD (TMPD is acronyms for N,N,N',N'-tetramethyl-p-phenylenediamine, and TMPD+* is its mono-cation radical) couple were determined. Furthermore, results demonstrated electrolytic equilibrium was faster reached in macroporous gold film than ITO electrode.
机译：研究了透明的二维大孔金膜的电化学和光学性质。通过垂直沉积法将胶体晶体模板组装到铟掺杂的氧化锡（ITO）玻璃表面上。电沉积金之后，通过用四氢呋喃（THF）溶解除去它们。获得了高度有序的大孔金阵列。通过扫描电子显微镜（SEM）和紫外可见（UV-vis）分光光度法对其进行了表征。金膜的光学透明度接近25％，并且在300至900 nm之间相当恒定。将大孔金膜电极安装到薄层透射电池中。通过Fe（CN）63〜/ Fe（CN）64〜对的薄层循环伏安图（CV）评估了电化学响应。薄层电池表现出良好的波形和几乎对称的阴极波和阳极波。确定£°′值和TMPD +'/ TMPD（TMPD是N，N，N'，N'-四甲基-对苯二胺的缩写，TMPD + *是其单阳离子基团）对的n。此外，结果表明，大孔金膜中的电解平衡比ITO电极更快。

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