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Energy Saving Electrochromic Polymer Windows with a Highly Transparent Charge-Balancing Layer

机译：具有高度透明的电荷平衡层的节能电致变色聚合物窗口

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摘要

Highly transparent TiO2 nanoparticles are explored as a non-electrochromic (non-EC) charge-balancing layer for a high color contrast, bistable electrochromic window (ECW). The TiO2 nanoparticle (TNP) layer increases the potential at the EC polymer electrode, thereby lowering the working voltage of the ECW. This leads to lower the power consumption of ECWs without loss in the high color contrast (Delta T > 72%) and to remarkably improve the cyclability (Delta T change <1% over 3000 cycles), mainly due to the low overvoltage (<0.1 V) on the electrochromic polymer layer. Furthermore, the ECWs including the non-EC TNP layer show long-term bistability (>2.7 h, 40% increase) and UV stability (Delta T change <1%) to provide a low-power automatic ECW. This finding shows that the charge balanced ECP window has the potential to be used for an energy saving ECW with low-power consumption and will be widely applied in various ECWs as well as electrochemical devices with multiple functions.
机译：高度透明的TiO2纳米颗粒被用作非电致变色（non-EC）电荷平衡层，用于获得高色差，双稳态电致变色窗（ECW）。 TiO2纳米颗粒（TNP）层增加了EC聚合物电极上的电势，从而降低了ECW的工作电压。这可降低ECW的功耗，而不会损失高色彩对比度（Delta T> 72％），并显着提高可循环性（3000 T周期内Delta T变化<1％），这主要是由于过电压低（<0.1） V）在电致变色聚合物层上。此外，包括非EC TNP层的ECW表现出长期的双稳态（> 2.7 h，增加40％）和UV稳定性（Delta T变化<1％），从而提供了低功率的自动ECW。这一发现表明，电荷平衡的ECP窗具有可用于低功耗节能ECW的潜力，并将广泛应用于各种ECW以及具有多种功能的电化学装置中。

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  • 来源
    《Advanced Functional Materials》 |2017年第31期|1701192.1-1701192.8|共8页
  • 作者

    Kim Younghoon; Shin Haijin; Han Minsu; Seo Seogjae; Lee Woojae; Na Jongbeom; Park Chihyun; Kim Eunkyoung;

  • 作者单位

    Yonsei Univ, Dept Chem & Biomol Engn, R 50 Yonsei Ro, Seoul 120749, South Korea;

    Yonsei Univ, Dept Chem & Biomol Engn, R 50 Yonsei Ro, Seoul 120749, South Korea;

    Yonsei Univ, Dept Chem & Biomol Engn, R 50 Yonsei Ro, Seoul 120749, South Korea;

    Yonsei Univ, Dept Chem & Biomol Engn, R 50 Yonsei Ro, Seoul 120749, South Korea;

    Yonsei Univ, Dept Chem & Biomol Engn, R 50 Yonsei Ro, Seoul 120749, South Korea;

    Yonsei Univ, Dept Chem & Biomol Engn, R 50 Yonsei Ro, Seoul 120749, South Korea;

    Yonsei Univ, Dept Chem & Biomol Engn, R 50 Yonsei Ro, Seoul 120749, South Korea;

    Yonsei Univ, Dept Chem & Biomol Engn, R 50 Yonsei Ro, Seoul 120749, South Korea;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    charge balancing; electrochromic devices; photostability; working potentials;

    机译：电荷平衡;电致变色器件;光稳定性;工作电位;

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