Abstract In this paper, we report on the synthesis of solid polymer electrolytes (SPEs) on the basis of 95 wt.% PEO and 5 wt.% of anhydrous cobalt (II) chloride hexahydrate (CoCl2·6H2O), hereafter called PCL5, by the spin-coating technique using different types of glass (normal, quartz, ITO) substrates. The PCL5 electrolyte exhibits the highest conductivity and the lowest optical bandgap and hence, it was selected as a component to fabricate the organic single-layer device. The XRD measurements show that thin films have an amorphous structure after adding 5 wt.% of dopant. The IT5 (PCL5/ITO/glass) is transparent, the index of refraction is 1.359 at 450 nm, the maximum conductivity is 1.21 × 10−3 S cm−1 at 343 K and this material exhibits an energy bandgap of 3.47 eV. The electrochemical behavior and the stability of the device were examined with the help of cyclic voltammograms (CV). Linear sweep voltammetry (LSV) reveals that, as also found in the cathodic cycles, the electrolyte stability window of IT5 was 1.25 V. Accordingly the IT5 film can be considered as a transparent conductor potentially applicable for various optoelectronic devices.

中文翻译：

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旋涂沉积PCL5/ITO透明导电薄膜的光学、电学和电化学特性——单层器件材料

摘要 在本文中，我们报告了基于 95 wt.% PEO 和 5 wt.% 无水氯化钴 (II) 六水合物 (CoCl2·6H2O)（以下称为 PCL5）的固体聚合物电解质 (SPEs) 的合成。使用不同类型玻璃（普通、石英、ITO）基板的旋涂技术。PCL5 电解质表现出最高的电导率和最低的光学带隙，因此，它被选为制造有机单层器件的组件。XRD 测量表明，在添加 5 wt.% 的掺杂剂后，薄膜具有非晶结构。IT5（PCL5/ITO/玻璃）是透明的，在 450 nm 处的折射率为 1.359，在 343 K 时的最大电导率为 1.21 × 10-3 S cm-1，该材料的能带隙为 3.47 eV。在循环伏安图 (CV) 的帮助下检查了该装置的电化学行为和稳定性。线性扫描伏安法 (LSV) 表明，正如在阴极循环中发现的那样，IT5 的电解质稳定性窗口为 1.25 V。因此，IT5 薄膜可以被视为一种透明导体，可能适用于各种光电器件。