用于智能窗户的具有增强热致变色性能的酸溶液处理的VO基复合薄膜。

Acid Solution Processed VO-Based Composite Films with Enhanced Thermochromic Properties for Smart Windows.

作者信息

Wang Zhe, Li Bin, Tian Shouqin, Liu Baoshun, Zhao Xiujian, Zhou Xuedong, Tang Gen, Pang Aimin

机构信息

State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology (WUT), No. 122, Luoshi Road, Wuhan 430070, China.

Science and Technology on Aerospace Chemical Power Laboratory, Hubei Institute of Aerospace Chemotechnology, Xiangyang 441003, China.

出版信息

Materials (Basel). 2021 Aug 30;14(17):4927. doi: 10.3390/ma14174927.

As a typical thermochromic material, VO coatings can be applied to smart windows by modulating the transmission of near infrared (NIR) light via phase transition. However, the inherent undesirable luminous transmittance () and solar modulation efficiency (Δ) of pure VO impede its practical application. In order to solve this problem, the porous VO based composite film was prepared by magnetron sputtering and subsequent acid solution process with ZnVO particles used as a sacrificial template to create pores, which showed excellent (72.1%) and enhanced Δ (10.7%) compared with pure VO film. It was demonstrated that the porous structure of the film caused by acid solution process could improve the obviously and the isolated VO nanoparticles presented strong localized surface plasmon resonance (LSPR) effects to enhance the Δ. Therefore, this method will provide a facile way to prepare VO based films with excellent thermochromic performance and thus promote the application of the VO based films in smart windows.

作为一种典型的热致变色材料，VO 涂层可通过相变调节近红外（NIR）光的透射率而应用于智能窗户。然而，纯 VO 固有的不良发光透射率（）和太阳调制效率（Δ）阻碍了其实际应用。为了解决这个问题，采用磁控溅射和后续酸溶液工艺制备了以多孔 VO 为基础的复合薄膜，以 ZnVO 颗粒作为牺牲模板来制造孔隙，与纯 VO 薄膜相比，该复合薄膜表现出优异的（72.1%）和增强的 Δ（10.7%）。结果表明，酸溶液工艺导致的薄膜多孔结构可显著提高，且孤立的 VO 纳米颗粒呈现出强烈的局域表面等离子体共振（LSPR）效应以增强 Δ。因此，该方法将为制备具有优异热致变色性能的 VO 基薄膜提供一种简便方法，从而推动 VO 基薄膜在智能窗户中的应用。