为改善氧化钨薄膜的电致变色性能,通过溶胶-凝胶法钨粉过氧化路线制备了聚乙二醇改性的氧化钨电致变色薄膜,并对其进行了不同温度的热处理,研究了不同退火温度对聚乙二醇改性氧化钨薄膜结构及电致变色性能的影响.采用X射线衍射(XRD)、透射电子显微镜(TEM)、扫描电子显微镜(SEM)、光谱椭偏仪(SE)、紫外-可见分光光度计、电化学工作站对薄膜的微观结构、光谱调制能力、着色效率、离子扩散能力、可逆性和响应时间及循环稳定性进行了表征和分析.结果表明,适当温度的热处理可以得到一种多孔的纳米晶/非晶复合结构薄膜,从而更有利于离子在薄膜中的扩散与迁移；300℃热处理PEG改性WO3薄膜表现出较高的光学调制幅度、着色效率以及良好的循环可逆性.
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