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Highly Efficient, Near-Infrared and Visible Light Modulated Electrochromic Devices Based on Polyoxometalates and W18O49 Nanowires
ACS Nano ( IF 15.8 ) Pub Date : 2018-01-04 00:00:00 , DOI: 10.1021/acsnano.7b07360
Hongxi Gu 1, 2 , Chongshen Guo 3 , Shouhao Zhang 1 , Lihua Bi 4 , Tianchan Li 1 , Tiedong Sun 1 , Shaoqin Liu 1, 3
Affiliation  

Over the past years the performance of electrochromic smart windows with the promising potential for significant energy savings has been progressively improved; however, the electrochromic windows have not yet to come into use at scale mainly because the electrochromic materials suffer from some significant drawbacks such as low coloration efficiency, slow switching time, bad durability and poor functionality. Herein, we fabricate the optically modulated electrochromic smart devices through sequential deposition of the crown-type polyoxometalates, K28Li5H7P8W48O184·92H2O (P8W48), and W18O49 nanowires. Unlike most reported electrochromic smart devices, the resulting P8W48 and W18O49 nanocomposites allow active and selective manipulation of the transmittance of near-infrared (750–1360 nm) and visible light (400–750 nm) by varying the applied potential. Furthermore, thanks to the stable nature of both P8W48 and W18O49 and precise structural control over the nanocomposites, the prepared electrochromic smart devices exhibit high efficiency, quick response and excellent stability.

中文翻译:

基于多金属氧酸盐和W 18 O 49纳米线的高效,近红外和可见光调制电致变色器件

在过去的几年中,电致变色智能窗户的性能具有可观的巨大节能潜力,并且已经逐步得到改善。然而,电致变色窗尚未大规模使用,这主要是因为电致变色材料具有一些显着的缺点,例如着色效率低,切换时间慢,耐久性差和功能差。在此,我们通过依次沉积冠状多金属氧酸盐,K 28 Li 5 H 7 P 8 W 48 O 184 ·92H 2 O(P 8 W 48)和W 18来制造光调制电致变色智能器件。O 49纳米线。与大多数报道的电致变色智能设备不同,所得的P 8 W 48和W 18 O 49纳米复合材料通过改变应用范围,可以主动和选择性地控制近红外(750-1360 nm)和可见光(400-750 nm)的透射率。潜在的。此外,由于P 8 W 48和W 18 O 49的稳定特性以及对纳米复合材料的精确结构控制,所制备的电致变色智能器件显示出高效率,快速响应和出色的稳定性。
更新日期:2018-01-04
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