二氧化钒薄膜智能窗的研究进展

二氧化钒具有良好的半导体-金属相变特性,在常温下,二氧化钒的晶体结构为单斜晶系结构(M相),随着温度的升高达到相变温度,二氧化钒的晶型变成四方晶红石结构(R相),当温度降低到相变温度时,二氧化钒的晶型又变回单斜晶系结构(M相)。这种典型可逆热色特征,使二氧化钒成为当前建筑用智能窗材料的最佳选择。综述了近些年来制备VO_2薄膜的几种常用方法,并针对VO_2薄膜在热色智能窗应用方面存在的主要问题,从掺杂和复合薄膜结构两方面总结了提高VO_2薄膜性能的改进工艺,为推进VO_2薄膜智能窗的进一步研究提供了依据。

Recent Research of Vanadium Dioxide Thin Film Smart Window

Vanadium dioxide (VO₂) has good characteristics of semiconductor metal phase transition. Under the normal temperature, VO₂ crystal structure is monoclinicsystem structure (M). With the increase of temperature, when phase transition tempe-rature is reached, VO₂ crystal configuration turns into a square crystal structure of redstone (R), but when the temperature is lower, VO₂ crystal structure becomes a monoclinic system structure (M) again, which is a kind of typical reversible thermochromic materials and is the best choice of the current building intelligent window materials. This article summarizes the preparation methods of VO₂ film in recent years. The technology used to improve the performance of VO₂ film is summarized from two aspects of doping and composite thin film structure in view of the mainly problems of the present thermochromic VO₂ thin film smart window. This review is useful for the references of the further research on VO₂ film intelligent window.