Shahzad Muhammad Khuram, Abbas Manj Rana Zafar, Abbas Ghulam, Laghari Rashid Ali, Akhtar Syed Sohail, Khan Muhammad Aslam, Tahir Muhammad Bilal, Znaidia Sami, Alzaid Meshal
Institute of Physics, Khwaja Fareed University of Engineering and Information Technology Rahim Yar Khan 64200 Pakistan
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University Shanghai 201620 China.
RSC Adv. 2022 Oct 31;12(48):30985-31003. doi: 10.1039/d2ra04661j. eCollection 2022 Oct 27.
Vanadium dioxide (VO)-based energy-saving smart films or coatings aroused great interest in scientific research and industry due to the reversible crystalline structural transition of VO from the monoclinic to tetragonal phase around room temperature, which can induce significant changes in transmittance and reflectance in the infrared (IR) range. However, there are still some obstacles for commercial application of VO-based films or coatings in our daily life, such as the high phase transition temperature (68 °C), low luminous transmittance, solar modulation ability, and poor environmental stability. Particularly, due to its active nature chemically, VO is prone to gradual oxidation, causing deterioration of optical properties during very long life span of windows. In this review, the recent progress in enhancing the thermochromic properties of VO-hybrid materials especially based on environmental stability has been summarized for the first time in terms of structural modifications such as core-shell structures for nanoparticles and nanorods and thin-films with single layer, layer-by-layer, and sandwich-like structures due to their excellent results for improving environmental stability. Moreover, future development trends have also been presented to promote the goal of commercial production of VO smart coatings.
基于二氧化钒（VO）的节能智能薄膜或涂层因其在室温附近VO从单斜相到四方相的可逆晶体结构转变而引起了科研和工业界的极大兴趣，这种转变可在红外（IR）范围内引起透射率和反射率的显著变化。然而，基于VO的薄膜或涂层在我们日常生活中的商业应用仍存在一些障碍，例如相变温度高（68°C）、发光透射率低、太阳调制能力差以及环境稳定性差。特别是，由于VO在化学上具有活性，它容易逐渐氧化，导致窗户在很长使用寿命期间光学性能下降。在这篇综述中，首次总结了基于纳米颗粒和纳米棒的核壳结构以及具有单层、逐层和三明治状结构的薄膜等结构改性在提高VO杂化材料热致变色性能尤其是环境稳定性方面的最新进展，因为它们在改善环境稳定性方面取得了优异成果。此外，还提出了未来的发展趋势，以推动VO智能涂层商业化生产的目标。
