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首页> 外文期刊>Journal of nanomaterials >Mixed Nanostructured Ti-W Oxides Films for Efficient Electrochromic Windows
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Mixed Nanostructured Ti-W Oxides Films for Efficient Electrochromic Windows

机译：高效电致变色窗的混合纳米结构Ti-W氧化物薄膜

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With the aim to enhance the electrochromic (EC) efficiency and electrochemical stability of electrochromic devices (ECD), mixed nanostructured TiO2/WO3films were prepared by an electrochemical deposition method with the purpose of adding WO3nanoparticles to porous nanocrystalline doctor-blade TiO2(nc-TiO2) films. The results of the characterization of electrochromic properties in 1 M LiClO4+ propylene carbonate (LiClO4+ PC) of both the nc-TiO2/F-doped tin oxide (FTO) and WO3/TiO2/FTO configurations showed the reversible coloration and bleaching of the ECDs. The response time of the ECD coloration of WO3/TiO2/FTO was found to be as small as 2 sec, and its coloration efficiency (CE) as high as 35.7 cm2× C−1. By inserting WO3nanoparticles into the porous TiO2structures, WO3/TiO2heterojunctions were formed in the films, consequently enabling both the CE and electrochemical stability of the working electrodes to be considerably enhanced. Since a large-area WO3/TiO2can be prepared by the doctor-blade technique followed by the electrochemical deposition process, mixed nanostructured Ti-W oxides electrodes constitute a good candidate for smart window applications, taking advantage of the excellent coloration and stability properties as well as the simple and economical fabrication process involved.
机译：为了提高电致变色器件（ECD）的电致变色（EC）效率和电化学稳定性，通过电化学沉积方法制备了混合纳米结构的TiO2 / WO3薄膜，目的是将WO3纳米粒子添加到多孔纳米晶刮刀TiO2（nc-TiO2）中）电影。 nc-TiO2 / F掺杂的氧化锡（FTO）和WO3 / TiO2 / FTO构型在1 M LiClO4 +碳酸亚丙酯（LiClO4 + PC）中的电致变色特性表征结果表明，ECD的可逆着色和漂白。发现WO3 / TiO2 / FTO的ECD着色的响应时间小至2 sec，其着色效率（CE）高达35.7Ω·cm2×C-1。通过将WO3纳米粒子插入多孔TiO2结构中，在薄膜中形成WO3 / TiO2异质结，因此可以显着提高工作电极的CE和电化学稳定性。由于可以通过刮刀技术随后进行电化学沉积工艺来制备大面积的WO3 / TiO2，因此混合的纳米结构Ti-W氧化物电极也具有出色的着色和稳定性能，是智能窗口应用的良好选择。因为所涉及的简单而经济的制造过程。

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