目前制备电致变色器件大多使用的是刚性基底,刚性基底存在厚度大、共型性差、机械强度低和成本高等不可忽视的问题,阻碍了电致变色技术及其商业化的发展。相比于刚性基底,柔性基底具有体积小、重量轻和可弯曲等优点。综合评述了铟锡氧化物/聚对苯二甲酸乙二醇酯(ITO/PET)在氧化钨电致变色薄膜中的最新研究进展,介绍了氧化钨/ITO/PET复合材料的制备方法和实际应用。最后,对目前存在的一些挑战进行了概括与讨论,并对柔性电致变色材料的发展进行了展望。
Currently,most electrochromic devices use rigid substrates.However,rigid substrates have obvious drawbacks like large thickness,poor conformability,low mechanical strength and high cost cannot be ignored,which hinder the development and commercialization of electrochromic technology.Compared with rigid substrates,flexible substrates have the advantages like small volume,light weight and flexibility.The latest research progress of indium tin oxide/polyethylene terephthalate (ITO/PET) in tungsten oxide electrochromic films was reviewed,and the preparation methods and practical applications of tungsten oxide/ITO/PET composites were introduced.Finally,the challenges and the prospects of flexible electrochromic materials were addressed.
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基金资助
国家自然科学基金(21373150)
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