A high-performance electrochromic device assembled with WO3/Ag and TiO2/NiO composite electrodes towards smart window

IF 2.5 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Frontiers of Materials Science Pub Date : 2024-05-13 DOI:10.1007/s11706-024-0674-z

Haorui Liu, Jikai Yang, Decai Nie, Chunlei Liu, Liumenghan Zheng, Yining Mu, Weijun Chen

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Abstract

The choice of cathode and anode materials for electrochromic devices plays a key role in the performance of electrochromic smart windows. In this research, WO₃/Ag and TiO₂/NiO composite thin films were separately prepared by the hydrothermal method combined with electrodeposition. The electrochromic properties of the single WO₃ thin film were optimized, and TiO₂/NiO composite films showed better electrochromic performance than that of the single NiO film. WO₃/Ag and TiO₂/NiO composite films with excellent electrochromic properties were respectively chosen as the cathode and the anode to construct a WO₃/Ag-TiO₂/NiO electrochromic device. The response time (t_c = 4.08 s, t_b = 1.08 s), optical modulation range (35.91%), and coloration efficiency (30.37 cm²·C⁻¹) of this electrochromic device are better than those of WO₃-NiO and WO₃/Ag-NiO electrochromic devices. This work provides a novel research idea for the performance enhancement of electrochromic smart windows.

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用 WO3/Ag 和 TiO2/NiO 复合电极组装的高性能电致变色装置，可用于智能窗户

电致变色装置阴极和阳极材料的选择对电致变色智能窗的性能起着关键作用。本研究采用水热法结合电沉积法分别制备了 WO3/Ag 和 TiO2/NiO 复合薄膜。对单一 WO3 薄膜的电致变色性能进行了优化，TiO2/NiO 复合薄膜的电致变色性能优于单一 NiO 薄膜。分别选择电致变色性能优异的 WO3/Ag 和 TiO2/NiO 复合薄膜作为阴极和阳极，构建了 WO3/Ag-TiO2/NiO 电致变色装置。该电致变色装置的响应时间（tc = 4.08 s，tb = 1.08 s）、光调制范围（35.91%）和着色效率（30.37 cm2-C-1）均优于 WO3-NiO 和 WO3/Ag-NiO 电致变色装置。这项工作为提高电致变色智能窗的性能提供了一种新的研究思路。

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来源期刊

Frontiers of Materials Science MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

4.20

自引率

3.70%

发文量

515

期刊介绍： Frontiers of Materials Science is a peer-reviewed international journal that publishes high quality reviews/mini-reviews, full-length research papers, and short Communications recording the latest pioneering studies on all aspects of materials science. It aims at providing a forum to promote communication and exchange between scientists in the worldwide materials science community. The subjects are seen from international and interdisciplinary perspectives covering areas including (but not limited to): Biomaterials including biomimetics and biomineralization; Nano materials; Polymers and composites; New metallic materials; Advanced ceramics; Materials modeling and computation; Frontier materials synthesis and characterization; Novel methods for materials manufacturing; Materials performance; Materials applications in energy, information and biotechnology.