采用溶胶.凝胶法在Si和普通玻璃基底上制备V2O5纳米薄膜.在空气中对样品进行不同温度的退火处理.利用X射线衍射、扫描电子显微镜和分光光度计对制备的V2O5薄膜的结构、形貌和光学特性进行研究.XRD和SEM研究结果表明:可以通过升高退火温度来提高薄膜的结晶程度、颗粒尺寸及其均匀程度,并增强V2O5的择优取向性.透射谱和吸收谱的研究结果表明:随着退火温度的升高,V2O5薄膜的吸收边缘发生红移,光学带隙逐渐变窄.
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