Viologen-Based Flexible Thin Electrochromic Devices Containing a Liquid Crystal Monomer 


Vol. 62,  No. 5, pp. 304-310, Oct.  2025
10.12772/TSE.2025.62.304


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  Abstract

In this work, flexible electrochromic devices (ECDs) were fabricated by integrating viologen with a liquid crystal monomer (RM82) into an electrochromic ion gel, aiming to enhance both electrochemical properties and mechanical durability. The ion gel was drop-cast onto an ITO–PET substrate, producing a uniform film with an average thickness of about 47 μm. Devices incorporating RM82 demonstrated superior performance compared to those without, showing higher ionic conductivity, good stretchability, and large optical contrast at –1.3 V. Moreover, the RM82-based ECDs sustained stable electrochromic switching for over 12,000 s with less than 2% degradation, whereas the RM82-free devices exhibited reduced optical contrast and poorer long-term stability. These findings highlight that introducing a liquid crystal monomer into the viologen-based ion gel significantly improves the electrochemical efficiency and mechanical robustness of flexible ECDs. This advancement positions them as strong candidates for next-generation thin, lightweight, and durable applications such as smart windows and wearable electronics.

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  Cite this article

[IEEE Style]

최재원, 엄수연, 진수은, 박종승, "Viologen-Based Flexible Thin Electrochromic Devices Containing a Liquid Crystal Monomer," Textile Science and Engineering, vol. 62, no. 5, pp. 304-310, 2025. DOI: 10.12772/TSE.2025.62.304.

[ACM Style]

최재원, 엄수연, 진수은, and 박종승. 2025. Viologen-Based Flexible Thin Electrochromic Devices Containing a Liquid Crystal Monomer. Textile Science and Engineering, 62, 5, (2025), 304-310. DOI: 10.12772/TSE.2025.62.304.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)