A Universal Approach To Achieve High Luminous Transmittance and Solar Modulating Ability Simultaneously for Vanadium Dioxide Smart Coatings via Double-Sided Localized Surface Plasmon Resonances

作者：Shuliang Dou, Jiupeng Zhao, Weiyan Zhang, Haipeng Zhao, Feifei Ren, Leipeng Zhang, Xi Chen, Yaohui Zhan, Yao Li · 发表于：ACS Applied Materials & Interfaces · 年份：2020 · DOI：10.1021/acsami.9b17923 · 被引用次数：79 · 研究领域：Transition Metal Oxide Nanomaterials、Ga2O3 and related materials、TiO2 Photocatalysis and Solar Cells

Vanadium dioxide (VO 2 )-based thermochromic coatings has attracted considerable attention in the application of smart windows as a result of their intriguing property of metal–insulator transition at moderate temperatures. However, the practical requirements of smart windows, i.e., the high luminous transmittance of T lum > 60% and large solar modulating ability of Δ T sol > 10%, are competing to a large extent and hardly satisfied simultaneously. Here, we proposed a facile and universal method to prepare VO 2 coatings for exceeding the criteria above using double-sided localized surface plasmon resonances (LSPRs), which are excited by the VO 2 nanoparticles dispersed evenly on both surfaces of the fused silica substrate. With subtle engineering of the sol–gel and heat treatment processes, the morphology of as-prepared VO 2 nanoparticles and corresponding LSPRs are controlled to achieve a high luminous transmittance ( T lum = 68.2%) and solar modulating ability (Δ T sol = 11.7%) simultaneously. Further simulation suggests that the double-sided LSPRs can collectively enhance the performance of VO 2 smart coatings. Moreover, the double-sided VO 2 nanoparticle coatings demonstrate stable performance with no more than 1% degradation of T lum and Δ T sol after 1500 cycles. This study provides an alternative strategy to obtain high-quality VO 2 (M) solar modulating coatings.