基于氧化钨电致变色材料的制备、性能及应用研究

Preparation,Properties and Application of Tungsten Oxide-Based Electrochromic Materials

电致变色材料因其能进行持久且可还原的变色反应而受到广泛关注。作为在无机电致变色材料中研究最为普遍的阴极电致变色材料,氧化钨具有材料易得、成本低廉、变色性能优异、化学稳定性和热稳定性良好等特点。综述概述了氧化钨的电致变色机理,总结近几年氧化钨电致变色材料的研究成果,介绍了氧化钨薄膜的结构、形貌、结晶度及元素掺杂对其变色性能的影响,深入讨论反应条件及协同构建等手段与氧化钨薄膜的着色效率、光学调制幅度、循环稳定性等的关系,并对不同应用领域的需求特点进行了探讨,为合理设计氧化钨基电致变色材料提供理论指导,最后对该研究领域存在的关键问题和挑战进行讨论和展望。

Electrochromic materials have attracted much attention because of their reversible and durable color change.As the most commonly studied cathodic electrochromic material in inorganic electrochromic materials,tungsten oxide has the characteristics of easy availability,low cost,excellent chromic properties,good chemical and thermal stability.The review first outlines the electrochromic mechanism of tungsten oxide.Then it summarizes the recent research achievements of tungsten oxide-based electrochromic materials.It emphasizes the effects of the structure,morphology,crystallinity and element doping on the electrochromic behavior of tungsten oxide films,including the coloring efficiency,optical modulation range,switching speed,and cyclic stability,which provides theoretical guidance for the rational design of tungsten oxide-based electrochromic materials.Importantly,the requirements and limits of tungsten oxide-based electrochromic materials in different application fields are also discussed.Finally,the key problems,challenges and perspectives in this research field are discussed.