In this report, an investigation of the optical properties of the (C₉H₁₄N)₃BiCl₆ hybrid compound by UV–Visible spectroscopy was detailed. The measurements were taken at room temperature in the range 200 to 2400 nm. The optical direct band-gap E_g, determined by means of reflectance data, by absorbance data or by Tauc's method, was evaluated at (3.391 ± 0.009) eV, (3.409 ± 0.009) eV and (3.422 ± 0.102) eV, respectively. Furthermore, the estimated Urbach energy (290 ± 7) meV proves the high disordered system. The dependence of optical constants such as the extinction coefficient k and the optical conductivity on the incident wavelength was analyzed. Besides, the skin depth shows that this sample has a screen effect for UV radiation. The refractive index, estimated around 1.52 in the visible domain, submits to the Cauchy relation. The dielectric study portrays the low values of the imaginary part of the complex dielectric constant. These losses are mainly in the bulk rather than the surface of the material. Based on the Wemple Di-Domenico model, the dispersion parameters E₀ and E_d relative to the (C₉H₁₄N)₃BiCl₆ sample were calculated. These encouraging results prompt us to propose this compound as a basic material for optoelectronic devices.

在此报告中，详细介绍了通过紫外可见光谱对（C ₉ H ₁₄ N）₃ BiCl ₆杂化化合物的光学性质的研究。在室温下在200至2400nm范围内进行测量。光学直接带隙E _g分别通过反射率数据，吸光度数据或Tauc方法确定的，分别为（3.391±0.009）eV，（3.409±0.009）eV和（3.422±0.102）eV。此外，估计的Urbach能量（290±7）meV证明了高无序系统。分析了诸如消光系数k和光导率之类的光学常数对入射波长的依赖性。此外，皮肤深度表明该样品具有屏蔽紫外线辐射的作用。折射率在可见光区估计为1.52左右，服从柯西关系。介电研究描绘了复数介电常数虚部的低值。这些损失主要是散装，而不是材料表面。基于Wemple Di-Domenico模型，色散参数E计算出相对于（C ₉ H ₁₄ N）₃ BiCl ₆样品的₀和E _d。这些令人鼓舞的结果促使我们提出将该化合物用作光电器件的基本材料。