Highly Efficient, Near-Infrared and Visible Light Modulated Electrochromic Devices Based on Polyoxometalates and W18O49 Nanowires
| Autor: | Shaoqin Liu, Tianchan Li, Hongxi Gu, Shouhao Zhang, Chongshen Guo, Lihua Bi, Tiedong Sun |
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| Rok vydání: | 2018 |
| Předmět: |
Nanocomposite
Materials science business.industry Near-infrared spectroscopy General Engineering Nanowire General Physics and Astronomy 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochromic devices 01 natural sciences 0104 chemical sciences Switching time Electrochromism Transmittance Optoelectronics General Materials Science 0210 nano-technology business Visible spectrum |
| Zdroj: | ACS Nano. 12:559-567 |
| ISSN: | 1936-086X 1936-0851 |
| DOI: | 10.1021/acsnano.7b07360 |
| Popis: | 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 d... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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