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PbZr0.40Ti0.60O3非晶薄膜透射光谱性质研究

Keywords: 溶胶凝胶法PZT非晶薄膜光学常数禁带宽度折射率色散关系铁电薄膜

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Abstract:

采用溶胶凝胶方法在石英玻璃上制备了均匀透明的PbZr0.40Ti0.60O3(PZT)非晶薄膜,测量了200-1100nm的紫外可见近红外透射光谱,根据经典的包络计算方法,同时获得薄膜在透明振荡区的折射率,消光系数以及厚度,薄膜的折射率色散关系可以通过单电子sellmeier振荡模型成功地进行解释。最后,根据Tauc's法则,得到PbZr0.40Ti0.60O3非晶薄膜的禁带宽度为3.78eV。

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