WO3有着良好的氢致变色效应,是一种优异的氢敏感材料.对WO3薄膜氢致变色机理的研究有助于研制出更高灵敏度的WO3基氢敏传感器.目前,关于WO3薄膜的氢致变色机理主要有3种模型,即能级模型、价间跃迁模型和色心模型.分别评述了这3种理论,同时结合作者在WO3薄膜氢敏性能方面的实验研究工作,提出WO3薄膜氢致变色机理与钨离子在W6+～W5+之间的价间跃迁和O离子的化合环境及含量的变化有关.
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