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Determination and analysis of the dispersive optical constants of some organic thin films

机译:一些有机薄膜的色散光学常数的测定和分析

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摘要

The optical constants (refractive index n, extinction coefficient k and dielectric constant epsilon) of some organic thin films were determined using reflectance and transmittance spectra. The real part and imaginary parts of the complex dielectric constant were calculated. The analysis of the optical absorption data revealed both optical direct and indirect transition with band gaps of 2.492-2.926 and 2.07-2.13 eV, respectively. The refractive index dispersion obeyed the Single oscillator of Wemple-Didomenico model and dispersion parameters and high-frequency dielectric constant were determined. (C) 2004 Elsevier B.V. All rights reserved.
机译:使用反射光谱和透射光谱确定了一些有机薄膜的光学常数(折射率n,消光系数k和介电常数ε)。计算了复介电常数的实部和虚部。对光吸收数据的分析揭示了带隙分别为2.492-2.926和2.07-2.13eV的光学直接和间接跃迁。折射率色散服从Wemple-Didomenico模型的单振荡器,并确定色散参数和高频介电常数。 (C)2004 Elsevier B.V.保留所有权利。

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