비올로겐 이온겔 나노섬유의 전기변색 특성 연구 = Enhanced Electrochromic Performance of Viologen Ion Gel Nanofibers

다국어 초록 (Multilingual Abstract)

Electrochromism represents a reversible spectral or optical change owing to the redox reaction on applying potential biases. Here, we present the enhanced electrochromic properties by incorporating nanofiber webs prepared by electrospinning. The electrochromic devices (ECDs) were fabricated by sandwiching the ion gel nanowebs, made up of viologen and electrolyte, between two ITO glasses. The morphology of the nanofibers was examined using a scanning electron microscope. More ionic liquid could be present between randomly arranged nanofibers, resulting in increased ionic mobility. The fabricated ECDs exhibited significantly enhanced electrochromic performances with short switching speeds, high coloration efficiency, and long-term cyclic stability. Current results demonstrate that electrospinning is a practical approach for high-performance electrochromic devices.

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