红外与毫米波学报, 2003, 22 (3): 203, 网络出版: 2006-05-10
PbZr0.40Ti0.60O3非晶薄膜透射光谱性质研究
INVESTIGATIONS ON THE TRANSMISSION SPECTRA OF PbZr0.40Ti0.60O3 AMORPHOUS THIN FILMS
非晶薄膜 光学常数 禁带宽度. PbZr 0.40 Ti 0.60 O 3 PbZr0.40Ti0.60O3 amorphous thin films optical constants band gap energy.
摘要
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.
Abstract
Uniform and transparent PbZr 0.40 Ti 0.60 O 3 (PZT) amorphous thin films were deposited on the fused silica substrates using a modified sol gel processing. The optical properties of PZT amorphous thin films were investigated in the wavelength range of 200～1100nm. The refractive index, the extinction coefficient and the film thickness were calculated by a classical envelope method. The dispersion of the refractive index is well explained by the single term Sellmeier relation. The band gap of the PbZr 0.40 Ti 0.60 O 3 thin films is about 3.78eV using Tauc's theory.
胡志高, 王根水, 黄志明, 孟祥建, 赵强, 石富文, 褚君浩. PbZr0.40Ti0.60O3非晶薄膜透射光谱性质研究[J]. 红外与毫米波学报, 2003, 22(3): 203. 胡志高, 王根水, 黄志明, 孟祥建, 赵强, 石富文, 褚君浩. INVESTIGATIONS ON THE TRANSMISSION SPECTRA OF PbZr0.40Ti0.60O3 AMORPHOUS THIN FILMS[J]. Journal of Infrared and Millimeter Waves, 2003, 22(3): 203.
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