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Flexible Pseudocapacitive Electrochromics via Inkjet Printing of Additive-Free Tungsten Oxide Nanocrystal Ink

机译:通过无添加剂氧化钨纳米晶体油墨的喷墨印刷实现灵活的伪电容电致变色

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摘要

Direct inkjet printing of functional inks is an emerging and promising technique for the fabrication of electrochemical energy storage devices. Electrochromic energy devices combine electrochromic and energy storage functions, providing a rising and burgeoning technology for next-generation intelligent power sources. However, printing such devices has, in the past, required additives or other second phase materials in order to create inks with suitable rheological properties, which can lower printed device performance. Here, tungsten oxide nanocrystal inks are formulated without any additives for the printing of high-quality tungsten oxide thin films. This allows the assembly of novel electrochromic pseudocapacitive zinc-ion devices, which exhibit a relatively high capacity (approximate to 260 C g(-1) at 1 A g(-1)) with good cycling stability, a high coloration efficiency, and fast switching response. These results validate the promising features of inkjet-printed electrochromic zinc-ion energy storage devices in a wide range of applications in flexible electronic devices, energy-saving buildings, and intelligent systems.
机译:功能性油墨的直接喷墨印刷是用于制造电化学能量存储装置的新兴且有希望的技术。电致变色能源设备结合了电致变色和能量存储功能,为下一代智能电源提供了一种新兴的新兴技术。然而,过去印刷这样的装置具有所需的添加剂或其他第二相材料,以产生具有合适的流变性质的油墨,这会降低印刷装置的性能。在此,配制氧化钨纳米晶体油墨时不添加任何添加剂,即可印刷高质量的氧化钨薄膜。这允许组装新颖的电致变色伪电容锌离子器件,该器件显示出较高的容量(在1 A g(-1)时约为260 C g(-1)),具有良好的循环稳定性,较高的着色效率和快速性切换响应。这些结果证实了喷墨印刷电致变色锌离子储能设备的有前途的功能,这些应用在柔性电子设备,节能建筑和智能系统中的广泛应用中。

著录项

  • 来源
    《Advanced energy materials》 |2020年第17期|2000142.1 -2000142.8|共8页
  • 作者

  • 作者单位

    INM Leibniz Inst New Mat Campus D2 2 D-66123 Saarbrucken Germany;

    Nanyang Technol Univ Innovat Ctr Flexible Devices Sch Phys & Math Sci Singapore 637371 Singapore;

    INM Leibniz Inst New Mat Campus D2 2 D-66123 Saarbrucken Germany|Nanyang Technol Univ Innovat Ctr Flexible Devices Sch Phys & Math Sci Singapore 637371 Singapore;

    Nanyang Technol Univ Rolls Royce NTU Corp Lab Singapore 639798 Singapore;

    INM Leibniz Inst New Mat Campus D2 2 D-66123 Saarbrucken Germany|Saarland Univ Colloid & Interface Chem D-66123 Saarbrucken Germany;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    additive-free inks; flexible electrochromics; inkjet printing; zinc-ion storage; tungsten oxide;

    机译:无添加剂油墨;柔性电致变色;喷墨印刷;锌离子存储;氧化钨;

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