Abstract
In this study, all solid state electrochromic devices (ECDs) without plasticizer such as propylene carbonate were fabricated by sol-gel spin coating method. WO3 nanoparticles and PEO based polymer electrolyte solutions with hBN and without hBN nanoparticles were prepared. These solutions were sol-gel spin- and dip-coated on ITO-glass, respectively. For determining the effect of hBN nanoparticles, four configuration of ECDs were fabricated. The fast bleaching and coloring times of fabricated ECDs were obtained with hBN nanoparticles in WO3 and PEO based polymer electrolyte thin films as 1.15 seconds. Glass/ITO/hBN-WO3/hBN-PEO-based-polymer electrolyte/ITO/Glass electrochromic device is turned on and off 60 times. After 60 cycle, the device coloring time changed to 2-3 seconds, bleaching times changed to 30 seconds.
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