Anjali Chaudhary, Tanushree Ghosh, D. Pathak, S. Kandpal, M. Tanwar, C. Rani, Rajesh Kumar
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引用次数: 15
摘要
采用简单的电沉积技术合成了柔性无机普鲁士蓝(PB)电极,在电子学(电致变色)和生物学(葡萄糖传感)应用中具有双重功能。利用电子显微镜和拉曼光谱对制备的薄膜进行了结构和光谱表征。柔性无机电致变色器件是同类器件之一,具有色彩对比度(50%),显色效率(80 cm 2 /C)和超过400 s的稳健稳定性。该原型器件仅包含PB电极作为活性电致变色材料,其凝胶电解质在预先设计的器件几何结构中显示蓝色和绿色两种原色,并且具有少量的偏置开关。可逆氧化还原过程是导致含铅柔性器件电致变色的主要原因。在装置运行过程中,利用光谱和电化学技术进行了实验验证。其用于葡萄糖传感目的的附加用途可用于可穿戴电子应用。它是国内第一个完全开发的具有优异电致变色性能的无机柔性器件。
Flexible inorganic Prussian blue (PB) containing electrode hcas been synthesised using a simple electrodeposition technique for dual functions in electronics (electrochromism) and biology (glucose sensing) applications. Structural and spectroscopic characterisations of the fabricated film have been done using electron microscopy and Raman spectroscopy. Flexible inorganic electrochromic device is one of its kind having promising features with colour contrast (50%), coloration efficiency (80 cm 2 /C) and robust stability for more than 400 s. The prototype device contains only PB electrode as active electrochromic material with gel electrolyte in a pre ‐ designed device geometry that exhibits two primary colours, blue and green, with little amount of bias switching. Reversible redox processes have been found to be responsible for the electrochromism in PB containing flexible device. The same has been experimentally verified using spectroscopic and electrochemical techniques during device’s operation. Its additional use for glucose sensing purpose can be exploited for wearable electronics application. It is a first fully developed inorganic flexible device with superior electrochromic performance.