【摘要】 利用Hitachi U-4100型紫外-近红外分光光度计测量了ZnO和ZnO:Al薄膜在240～2 100nm波长范围内的透射光谱,根据介质的洛伦兹和德鲁德色散模型,利用matlab自带的遗传算法工具箱,对实验测量的透射光谱进行了数据拟合,得到了与实验符合的很好的拟合曲线,并得到了薄膜厚度,折射率、消光系数的色散曲线。更多还原

【Abstract】 The transmittance spectra of ZnO and ZnO:Al films were measured by UV-Vis-NIR Spectrophotometer(Hitachi U-4100) from 240~2100nm.According to Lorentz and Drude dielectric dispersion model,the experimental transmission spectra are fitted through the genetic algorithm toolbox in matlab programming.The theoretical fitting curve well matches the experimental data.From the results,film thickness,the dispersion curves of the refractive index and extinction coefficient are obtained.更多还原